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

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

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

ZIRCON MORPHOLOGY AS A CRYSTALLOGENETIC INDICATORKOSTOV I.1973; KRISTALL U. TECH.; DTSCH.; DA. 1973; VOL. 8; NO 1-3; PP. 11-19; ABS. ALLEM.; BIBL. 28 REF.; 7 ILL.Serial Issue

ZONING IN THE DEVELOPMENT OF THE VOLCANOGENIC ZEOLITES.KOSTOV I.1969; NEU. JB. MINERAL., ABH.; DEU; 1969(8), VOL. 111, NUM. 0003, P. 264 A 278Miscellaneous

GEOCHEMICAL AND CRYSTALLOGENETIC TRENDS OF SULPHIDE MINERALS = TENDANCES GEOCHIMIQUES ET CRISTALLOGENETIQUES DE MINERAUX SULFURESKOSTOV I.1982; GEOHIMIJA, MINERALOGIJA I PETROLOGIJA; ISSN 0324-1718; BGR; DA. 1982; NO 16; PP. 3-13; ABS. RUS; BIBL. 10 REF.; ILL.Article

SIGNIFICATION PETROLOGIQUE DE LA MORPHOLOGIE DES FELDSPATHSKOSTOV I.1978; TRUDY INST. GEOL. GEOFIZ., MOSKVA; SUN; DA. 1978; NO 403; PP. 201-210; BIBL. 22 REF.; 5 ILL.Article

CRYSTALLOCHEMICAL DIFFERENTIATION AND LOCALIZATION OF URANIUM ORE DEPOSITS IN THE EARTH'S CRUST.KOSTOV I.1977; IN: RECOGNITION EVAL. URANIFEROUS AREAS. PROC. MEET.; VIENNA; 1975; VIENNA; I.A.E.A.; DA. 1977; PP. 15-33; BIBL. 30 REF.; 9 ILL.Conference Paper

CRYSTAL CHEMISTRY AND CLASSIFICATION OF THE SILICATE MINERALS.KOSTOV I.1975; GEOKHIM. MINERAL. PETROL.; BALG.; 1975, VOL. 1, P. 5 A 41Serial Issue

APOPHYLLITE MORPHOLOGY AS AN EXAMPLE OF HABIT MODIFICATION OF PLANAR CRYSTALS.KOSTOV I.1975; NEU. JB. MINERAL., ABH.; DTSCH.; 1975, VOL. 123, NUM. 0002, P. 128 A 137Serial Issue

TECTONO - MAGMATIC SIGNIFICANCE OF ZEOLITES IN THE SREDNOGORIAN ZONE AND THE RHODOPES.KOSTOV I.1970; IZVEST. GEOL. INST., GEOKHIM. MINERAL. PETROGR., SOFIJA; BGR; 1970, VOL. 19, P. 235 A 241Miscellaneous