MINERALOGICAL AND GEOCHEMICAL ASPECTS OF PEGMATITES FROM OROGENIC BELTS OF EQUATORIAL AND SOUTHERN AFRICA.KNORRING O VON.1970; AFRICAN.MAGMATISM.AND.TECTONICS.EDIT.BY.CLIFFORD.T.N.GASS.I.G.; 1970, P. 157 A 184Miscellaneous

CARBONATITIC ROCKS FROM THE VOLCANIC FIELD OF WESTERN UGANDA.KNORRING O VON.1967; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP; GBR; 1967(6), P. 30 A 32Miscellaneous

NOTES ON MINERALS FROM THE KARIBIB AREA IN SOUTH WEST AFRICA.KNORRING O VON.1971; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP; GBR; 1971, VOL. 15Miscellaneous

C) ON THE GEOCHEMISTRY OF SOME NIOBIUM-TANTALUM MINERALS FROM AFRICAN PEGMATITES.KNORRING O VON.1968; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP; GBR; 1968(6), NUM. 0012, P. 50 A 53Miscellaneous

PEGMATITE MINERAL STUDIES.KNORRING O VON.1967; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP; GBR; 1967(6), P. 36 A 37Miscellaneous

A NOTE ON THE PHOSPHATE MINERALISATION AT THE BURANGA PEGMATITE, RWANDA.KNORRING O VON.1969; BULL. SERV. GEOL. REPUBL. RWANDAISE; RWA; 1969, NUM. 0005, P. 42 A 45Miscellaneous

KORNERUPINE-BEARING GNEISS FROM INANAKAFY NEAR BETROKA, MADAGASCAR.KNORRING O VON; SAHAMA TG; LEHTINEN M et al.1969; BULL. GEOL. SOC. FINL.; FIN; 1969, NUM. 0041, P. 79 A 84Miscellaneous

RANKAMAITE, A NEW TANTALUM MINERAL FROM KIVU, CONGO.KNORRING O VON; VORMA A; NIXON PH et al.1969; BULL. GEOL. SOC. FINL.; FIN; 1969, NUM. 0041, P. 47 A 56Miscellaneous

SCANDIAN IXIOLITE FROM MOZAMBIQUE AND MADAGASCAR.KNORRING O VON; SAHAMA TG; LEHTINEN M et al.1969; BULL. GEOL. SOC. FINL.; FIN; 1969, NUM. 0041, P. 75 A 77Miscellaneous

A NOTE ON GRANDIDIERITE FROM FORT DAUPHIN, MADAGASCAR.KNORRING O VON; SAHAMA TG; LEHTINEN M et al.1969; BULL. GEOL. SOC. FINL.; FIN; 1969, NUM. 0041, P. 71 A 74Miscellaneous

SINHALITE AND SERENDIBITE FROM TANZANIA.BOWDEN P; KNORRING O VON; BARTHOLEMEW RW et al.1969; MINERAL. MAG.; GBR; 1969(3), VOL. 37, NUM. 0285, P. 145 A 146Miscellaneous

COOKEITE FROM THE MUIANE PEGMATITE,ZAMBEZIA,MOZAMBIQUE.SAHAMA TG; KNORRING O VON; LEHTINEN M et al.1968; LITHOS; NOR; 1968, VOL. 1, NUM. 0001, P. 12 A 19Miscellaneous

BISMUTH MINERALISATION IN SOME AFRICAN PEGMATITES.VON KNORRING O.1975; IN: COLLOQ. AFR. GEOL. ABSTR.; LEEDS; 1975; LEEDS; UNIV. LEEDS; DA. 1975; PP. 85Conference Paper

BISMUTH MINERALIZATION IN SOME AFRICAN PEGMATITES.VON KNORRING O.1975; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP.; G.B.; 1975, NUM. 0019, P. 19 A 21Serial Issue

BISMUTH MINERALIZATION IN SOME AFRICAN PEGMATITES.VON KNORRING O.1975; IN: INST. RES. AFR. GEOL. ANNU. REP. 19; LEEDS; 1975; LEEDS; UNIV. LEEDS; DA. 1975; PP. 19-21; BIBL. 11 REF.Conference Paper

ON TANTALUM MINERALIZATION IN SOME PEGMATITES FROM EQUATORIAL AND SOUTHERN AFRICA.VON KNORRING O.1974; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. RESP.; G.B.; 1974, NUM. 0018, P. 34 A 38Serial Issue

A note on tin-tantalum pegmatites in the Damara Orogen and alkali rocks associated with the Brandberg Complex = Note sur les pegmatites à étain-tantale dans l'orogène Damara et les roches alcalines associées au complexe BrandbergVON KNORRING, O.1986, Vol 2, pp 63-64Article

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Niobium and tantalum minerals = Les minéraux de niobium et de tantaleVON KNORRING, O.1985, Vol 1, pp 85-88Article

POLLUCITE FROM SOME AFRICAN AND SCANDINAVIAN PEGMATITES.KHALILI H; VON KNORRING O.1976; UNIV. LEEDS, RES. INST. AFR. GEOL., ANNU. REP.; G.B.; DA. 1976; VOL. 20; PP. 59-60; BIBL. 2 REF.; 2 ILL.; 10 ANAL.Article

A LITHIUM PEGMATITE BELT IN IRELAND.STEIGER R; VON KNORRING O.1974; J. EARTH SCI.; GBR; 1974, VOL. 8, NUM. 0003, P. 433 A 443Serial Issue

GUTAMBAITE, CAAL₂ (PO₄)₂ (OH)₂.H₂O: A NEW SPECIES FROM BURANGA PEGMATITE, RWANDA.VON KNORRING O; FRANSOLET AM.1977; NEU. JB. MINERAL., MONATSH.; DTSCH.; DA. 1977; NO 12; PP. 561-568; BIBL. 1 P.; 6 ILL.Article

AN OCCURRENCE OF BJAREBYITE IN THE BURANGA PEGMATITE, RWANDA.VON KNORRING O; FRANSOLET AM.1975; SCHWEIZ. MINERAL. PETROGR. MITT.; SCHWEIZ; 1975, VOL. 55, NUM. 0001, P. 9 A 18Serial Issue

Alteration of spodumene and petalite in some African pegmatites = Altération du spodumène et de la pétalite dans quelques pegmatites africainesVON KNORRING, O.University of Leeds, Research Institute of african Geology, Annual Report on scientific Results. 1963, pp 12-14, 3 p., 2 taArticle

Some aspects of tin deposits in South-East Asia = Quelques aspects des gisements d'étain dans le Sud-Est de l'AsieVON KNORRING, O.1989, Vol 41, Num 9-10, pp 167-169, issn 0046-5720, 3 p.Article