ELEVATION DU NIVEAU DE L'ENSEIGNEMENT DE L'ECONOMIE POLITIQUE EN BULGAREKOSTOV I.PROBLEMI NA VISSETO OBRAZOVANIE. 1974, Num 2, pp 45-50Article

LES ACADEMIES NATIONALES DES SCIENCES EN URSS EN BULGAREKOSTOV I.PRIRODA. 1974, Vol 23, Num 2, pp 14-17Article

A NOTE ON A MORE RATIONAL CLASSIFICATION OF MINERALS.KOSTOV I.1964; INTERNATION. SER. MONOGR. EARTH SCI; GBR; 1964, VOL. 18, P. 101 A 123Miscellaneous

ON THE HABIT VARIATION OF SOME CLAY MINERALS.KOSTOV I.sdIN: 6. CONF. CLAY MINERAL. PETROL.; PRAHA, KUTNA HORA; 1973; PRAHA UNIV. KARLOVA,1975, P. 9 A 16Miscellaneous

MOTIFS STRUCTURAUX ET GENETIQUE STRUCTURALE DES MINERAUXKOSTOV I.1981; KRISTALLOGRAFIJA; ISSN 0023-4761; SUN; DA. 1981; VOL. 26; NO 6; PP. 1244-1247; BIBL. 6 REF.Article

HABIT VARIATION OF CRYSTALS OF THE C3₁2-C3₂2 SPACE GROUPKOSTOV I.1978; IZVEST. KHIM.; BGR; DA. 1978 PUBL. 1979; VOL. 11; NO 3-4; PP. 398-405; ABS. BUL; BIBL. 13 REF.Article

CRYSTAL CHEMISTRY OF THE MINERALS. RELATIONSHIP BETWEEN CRYSTAL STRUCTURE, CONDITION OF CRYSTALLIZATION AND GROWTH MORPHOLOGY.KOSTOV I.1977; GEOKHIM. MINERAL. PETROL.; BALG.; DA. 1977; VOL. 7; PP. 3-21; ABS. RUSSE BULG.; BIBL. 1 P. 1/2; 10 ILL.Article

VARIABILITY OF THE CRYSTAL FORMS OF SOME GEMSTONES.KOSTOV I.1973; SBOR. NAROD. MUZ. PRAZE, B; CSK; 1973,1975, VOL. 29, NUM. 0001-0002, P. 65 A 75Serial Issue

ON ISOMORPHISM AMONGST MINERALS OF THE GROUP OF SULPHO-SALTS.KOSTOV I.1964; INTERNATION. SER. MONOGR. EARTH SCI; GBR; 1964, VOL. 18, P. 293 A 300Miscellaneous

THE CLASSIFICATION OF OXIDES.KOSTOV I.1964; INTERNATION. SER. MONOGR. EARTH SCI; GBR; 1964, VOL. 18, P. 221 A 244Miscellaneous

CRYSTAL CHEMISTRY AND PARAGENETIC TRENDS OF SILICATE MINERALS = CRISTALLOCHIMIE ET PARAGENESE DE MINERAUX SILICATESKOSTOV I.1981; BULL. MINERAL.; ISSN 0180-9210; FRA; DA. 1981; VOL. 104; NO 4; PP. 413-417; ABS. FRE; BIBL. 12 REF.; ILL.Conference Paper

TEMPORAL AND LATERAL MOBILISATION OF THE ORE-FORMING ELEMENTS IN THE BALKAN PENINSULA.KOSTOV I.1975; GEOL. BALC.; BULG.; DA. 1975; VOL. 5; NO 1; PP. 27-39; ABS. RUSSE; BIBL. 1 P.; 4 ILL.Article

HABIT TYPES AND CRYSTALLOGENESIS OF DIASPORE AND GOETHITE.KOSTOV I.1969; GOD. SOFIJSK. UNIV., GEOL.-GEOGR. FAK.; BGR; 1969, VOL. 61, NUM. 0001, P. 167 A 176Miscellaneous

CRISTALLOGRAPHIE.KOSTOV I.1965; MOSCOU-IZDAT."MIR".; 1965, P. 1 A 528Miscellaneous

PARAGENTIC ANALYSIS AND CLASSIFICATION OF THE SULPHIDE MINERALS.KOSTOV I.1964; INTERNATION. SER. MONOGR. EARTH SCI; GBR; 1964, VOL. 18, P. 258 A 292Miscellaneous

MINERAL MORPHOLOGY AND GEOLOGICAL PROCESSES.KOSTOV I.sdIN: 25. INT. GEOL. CONGR. ABS.; SYDNEY; 1976; CANBERRA; PRINT. UNION OFFSET; DA. S.D.; VOL. 2; PP. 577-578Conference Paper

PARAGENETIC TRENDS OF SULPHOSALT MINERALS = TENDANCES PARAGENETIQUES DES SULFOSELSKOSTOV I.1981; FREIBERGER FORSCHUNGSH., REIHE C; ISSN 0071-9404; DDR; DA. 1981; VOL. 10; NO 364; PP. 135-140; BIBL. 5 REF.; ILL.Article

CHRYSTAL CHEMISTRY AND SYSTEMATICS OF THE SULPHOSALT MINERALS = CRISTALLOCHIMIE ET SYSTEMATIQUE DES MINERAUX DES SULFOSELSKOSTOV I.1980; SUL'FOSOLY, PLATINOVYE MINERALY I RUDNAYA MIKROSKOPIYA. MATERIALY S''ESDA MMA. 11/1978/NOVOSIBIRSK; SUN; MOSKVA: NAUKA; DA. 1980; PP. 7-15; ABS. RUS; BIBL. 1 P.Conference Paper

RESSOURCES MINERALES - ACTUELLEMENT ET DANS L'AVENIRKOSTOV I.1978; SPIS BALG. AKAD. NAUK.; BGR; DA. 1978; VOL. 24; NO 3; PP. 11-17; 1 ILL.Article

CRYSTALLOGENESIS OF SOME METEORITE MINERALS.KOSTOV I.1973; IZVEST. GEOL. INST., GEOKHIM. MINERAL. PETROGR., SOFIJA; BALG.; DA. 1973; VOL. 22; PP. 53-60; ABS. RUSSE; BIBL. 14 REF.; 4 ILL.Article

ZIRCON MORPHOLOGY AS A CRYSTALLOGENETIC INDICATOR.KOSTOV I.1973; KRISTALL U. TECH.; DTSCH.; 1973, VOL. 8, NUM. 0001-0003, P. 11 A 19Serial Issue

PARAGENESE UND KLASSIFIKATION DER MINERALE.KOSTOV I.1968; FREIBERGER FORSCH.-H., C; DDR; 1968, VOL. 230, P. 81 A 96Miscellaneous

CRUSTAL PATTERN AND MINERALISATION OF THE MEDITERRANEAN FRAMELAND.KOSTOV I.1978; PROC. GEOLOGISTS' ASS.; G.B.; DA. 1978; VOL. 89; NO 2; PP. 101-123; BIBL. 2 P. 1/2; 14 ILL.Article

SULPHOSALT MINERALS. CRYSTAL CHEMISTRY AND MORPHOLOGY.KOSTOV I.1978; KRISTALL. U. TECH.; DDR; DA. 1978; VOL. 13; NO 4; PP. 449-458; ABS. GER; BIBL. 13 REF.Article

LA MINERALOGIE BULGARE AU COURS DES 30 DERNIERES ANNEESKOSTOV I.1975; GEOKHIM. MINERAL. PETROL.; BALG.; 1975, VOL. 3, P. 88 A 93Serial Issue