@booklet {4303,
	title = {DESSANTI, R. N. 1956. Descripcion geologica de la Hoja 27c - Cerro Diamante (Provincia de Mendoza). Boletin Direccion Nacional de Mineria, 50{\quotesinglbase} 1-79.},
	year = {1956},
	note = {DESSANTI, R. N. 1956. Descripcion geologica de la Hoja 27c - Cerro Diamante (Provincia de Mendoza). Boletin Direccion Nacional de Mineria, 50{\quotesinglbase} 1-79.}
}
@booklet {4826,
	title = {HEWITT, D.F. and JAMES, W. 1956. Geology of Dungannon and Mayo Townships. Annual Report, Ontario Department of Mines, 64(8): 1-65.},
	year = {1956},
	note = {HEWITT, D.F. and JAMES, W. 1956. Geology of Dungannon and Mayo Townships. Annual Report, Ontario Department of Mines, 64(8): 1-65.}
}
@booklet {5362,
	title = {HARRISON, J.V. 1956. La geologia de la region Casca-Junin: la geologia del Valle del Rio Mantaro. Boletim, Ministerio de Fomento y Obras Publicas Instituto Nacional de Investigacion y Fomento Mineros, 15: 1-55.},
	year = {1956},
	note = {HARRISON, J.V. 1956. La geologia de la region Casca-Junin: la geologia del Valle del Rio Mantaro. Boletim, Ministerio de Fomento y Obras Publicas Instituto Nacional de Investigacion y Fomento Mineros, 15: 1-55.}
}
@booklet {5449,
	title = {WALLACE, S.R. 1956. Petrogenetic significance of some feldspars from the Judith Mountains, Montana. Journal of Geology, 64: 369-84.},
	year = {1956},
	note = {WALLACE, S.R. 1956. Petrogenetic significance of some feldspars from the Judith Mountains, Montana. Journal of Geology, 64: 369-84.}
}
@booklet {5552,
	title = {ROBINSON, C.S. 1956. Geology of Devils Tower National Monument, Wyoming. Bulletin, United States Geological Survey, 1021-I: 289-302},
	year = {1956},
	note = {ROBINSON, C.S. 1956. Geology of Devils Tower National Monument, Wyoming. Bulletin, United States Geological Survey, 1021-I: 289-302}
}
@booklet {5737,
	title = {BILLINGS, M.P. 1956. The geology of New Hampshire. Part 2. Bedrock geology. The New Hampshire State Planning and Development Commission. Concord: 1-200.},
	year = {1956},
	note = {BILLINGS, M.P. 1956. The geology of New Hampshire. Part 2. Bedrock geology. The New Hampshire State Planning and Development Commission. Concord: 1-200.}
}
@booklet {5797,
	title = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.},
	year = {1956},
	note = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.}
}
@booklet {5807,
	title = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.},
	year = {1956},
	note = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.}
}
@booklet {6828,
	title = {BUTAKOVA, E.L. 1956. On the petrology of the Maimecha-Kotui complex of ultrabasic and alkaline rocks. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Moscow, 89: 201-49.},
	year = {1956},
	note = {BUTAKOVA, E.L. 1956. On the petrology of the Maimecha-Kotui complex of ultrabasic and alkaline rocks. Trudy Nauchno-Issledovatel{\textquoteright}skogo Instituta Geologii Arktiki, Moscow, 89: 201-49.}
}
@booklet {6898,
	title = {BARBEAU, J. 1956. Notice explicative sur la Feuille Fort-Lamy. Carte Geologique de Reconnaissance a l{\textquoteright}echelle de 1.1,000,000. Gouvernement General de l{\textquoteright}Afrique Equatoriale Francaise.GARDE, G. 1911. Description geologique des regions situees entre le Niger},
	year = {1956},
	note = {BARBEAU, J. 1956. Notice explicative sur la Feuille Fort-Lamy. Carte G{\'e}ologique de Reconnaissance {\`a} l{\textquoteright}{\'e}chelle de 1.1,000,000. Gouvernement General de l{\textquoteright}Afrique Equatoriale Fran{\c c}aise.GARDE, G. 1911. D{\'e}scription g{\'e}ologique des regions situ{\'e}es entre le Niger et le Tchad. Thesis, University of Clermont-Ferrand. A. Hermann et Fils, Paris. 284 pp.GENTIL, L. 1904. Sur l{\textquoteright}existence de roches alcalines dans le centre Africain. Comptes Rendus Hebdomadaires des S{\'e}ances de l{\textquoteright}Acad{\'e}mie des Sciences, Paris, 139: 413-5.}
}
@booklet {6913,
	title = {BOUTAKOFF, N. 1956. Les massifs volcaniques du Kahusi et du Biega (Kivu, Congo Belge). Memoires de l{\textquoteright}Institut Geologique de l{\textquoteright}Universite de Louvain, 9 (5): 1-41. KAMPUNZU, A.B., LUBALA, R.T., MAKUTU, M.N., CARON, J.-P., ROCCI, G. and VELLUTINI, P.J. 1985.},
	year = {1956},
	note = {BOUTAKOFF, N. 1956. Les massifs volcaniques du Kahusi et du Biega (Kivu, Congo Belge). M{\'e}moires de l{\textquoteright}Institut G{\'e}ologique de l{\textquoteright}Universit{\'e} de Louvain, 9 (5): 1-41. KAMPUNZU, A.B., LUBALA, R.T., MAKUTU, M.N., CARON, J.-P., ROCCI, G. and VELLUTINI, P.J. 1985. Les complexes alcalins de la r{\'e}gion interlacustre {\`a} l{\textquoteright}est du Za{\"\i}re et au Burundi: un example de massifs anorogeniques de relaxation. Journal of African Earth Sciences, 3: 151-67.LUBALA, R.T., KAMPUNZU, A.B. and CARON, J.-P. 1986. Mineralogie, petrologie et signification geodynamique du complexe alcalin et hyperalcalin du Biega (Kivu- Za{\"\i}re). Annales de la Soci{\'e}t{\'e} G{\'e}ologique de Belgique, Li{\`e}ge, 109: 455-71.VELLUTINI, P., BONHOMME, M., CARON, J.-P.H., KAMPUNZU, A.B. and LUBALA, T. 1981. Sur la signification tectonique des complexes alcalins acides du Kahuzi et du Biega (Kivu, Za{\"\i}re). Comptes Rendus Hebdomadaires des S{\'e}ances de l{\textquoteright}Acad{\'e}mie des Sciences, Paris, Ser 2, 292: 1027-9.}
}
@booklet {7295,
	title = {FRANKEL, J.J. 1956. An inclusion bearing olivine melilitite from Mukorob, South-West Africa. Transactions of the Royal Society of South Africa, 35: 115-23.JANSE, A.J.A. 1975. Kimberlite and related rocks from the Nama Plateau of South-West Africa. Physics},
	year = {1956},
	note = {FRANKEL, J.J. 1956. An inclusion bearing olivine melilitite from Mukorob, South-West Africa. Transactions of the Royal Society of South Africa, 35: 115-23.JANSE, A.J.A. 1975. Kimberlite and related rocks from the Nama Plateau of South-West Africa. Physics and Chemistry of the Earth, 9: 81-94.VERWOERD, W.J. 1993. Update on carbonatites of South Africa and Namibia. South African Journal of Geology, 96: 75-96.}
}
@booklet {7647,
	title = {DAVIES, K.A. 1956. The geology of part of south-east Uganda. Memoir, Geological Survey of Uganda, 8: 1-76.REEDMAN, J.H. 1974. Residual soil geochemistry in the discovery and evaluation of the Butiriku carbonatite, southeast Uganda. Transactions of the Ins},
	year = {1956},
	note = {DAVIES, K.A. 1956. The geology of part of south-east Uganda. Memoir, Geological Survey of Uganda, 8: 1-76.REEDMAN, J.H. 1974. Residual soil geochemistry in the discovery and evaluation of the Butiriku carbonatite, southeast Uganda. Transactions of the Institution of Mining and Metallurgy, 83: B1-12.}
}
@booklet {7686,
	title = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.},
	year = {1956},
	note = {BAGDASARYAN, G.P. 1956. Petrography of alkaline effusive rocks. Ivestiya Akademii Nauk Armyanskoi SSR, Seriya Geologiya. Erevan, 2: 25-36.}
}
