OLISTOSTROMES DANS LE FLYSCHTITHONIQUE EN BULGARIENACHEV I.1977; SPIS. BALG. GEOL. DRUZH.; BALG.; DA. 1977; VOL. 38; NO 1; PP. 43-52; ABS. ANGL.; BIBL. 20 REF.; 7 ILL.Article

REGLES DANS LA REPARTITION DES COMPOSES DANS LES MINERAIS DE FER JURASSIQUES EN BULGARIENACHEV I.1974; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1974, VOL. 23, P. 131 A 141Serial Issue

NOUVELLES DONNEES SUR LE JURASSIQUE DE STRANDZHANACHEV I.1972; SPIS. BALG. GEOL. DRUZH.; BALG. ; 1972, VOL. 33, NUM. 0003, P. 325 A 335Serial Issue

CARACTERISTIQUES ET STRUCTURES DES SEDIMENTS DANS LE FLYSCH TITHONIQUE DE KRAICHTE.NACHEV I.1970; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1970, VOL. 19, P. 175 A 204Miscellaneous

CARACTERISTIQUES ET STRUCTURES SEDIMENTAIRES DU FLYSCH TITHONIQUE DE LA REGION DE KRAISHTE.NACHEV I.1970; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1970, VOL. 19, P. 175 A 191Miscellaneous

LITHOLOGY OF THE HETTANGIAN-KIMMERIDGIAN SEDIMENTS IN THE KRAISHTE.NACHEV I.1969; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1969, VOL. 18, P. 127 A 159Miscellaneous

PALEOGEOGRAPHIE DU JURASSIQUE EN BULGARIENACHEV I.1973; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1973, VOL. 22, P. 161 A 194Serial Issue

LITHOLOGY AND GEOCHEMISTRY OF SEDIMENTARY IRON ORE IN TOARCIAN AND LOWER BAJOCIAN IN THE BALKAN AREA.NACHEV I.1968; JUBIL.GEOL.SBORN.50-GOD.VELIK.OKT.SOC.REVOL.-SOFIA.IZDAT.BOLG.A.N.; 1968, P. 221 A 231Miscellaneous

GEOLOGICAL EVOLUTION OF THE BALKAN AREA IN THE EARLY ALPINE GEOTECTONIC CYCLE.NACHEV I.1969; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1969, VOL. 18, P. 161 A 170Miscellaneous

LACUNES PRE-HETTANGIENNE ET INTRA-JURASSIQUES EN BULGARIE.NACHEV I.1965; CARPATHO-BALKAN.GEOL.ASS.7TH.CONGR.; 1965, VOL. 1, NUM. 002 , P. 131 A 137Miscellaneous

Bound states in n-inversion layers on small-gap HgCdTe at finite temperatureNACHEV, I.Semiconductor science and technology. 1990, Vol 5, Num 1, pp 69-71, issn 0268-1242, 3 p.Article

Bound states in inversion layers on p-Hg_1-xCd_xTe: self-consistent resultsNACHEV, I.Semiconductor science and technology. 1988, Vol 3, Num 1, pp 29-34, issn 0268-1242Article

BASIN MODEL OF FLYSCH IN BULGARIA = LES MODELES DE BASSIN DE SEDIMENTATION DU FLYSCH DE BULGARIENACHEV I.1982; PALEONTOL. STRATIGR. LITOL.; ISSN 0204-7217; BGR; DA. 1982; VOL. 16; PP. 61-72; ABS. RUS/BUL; BIBL. 1 P.; ILL./BLOC DIAGR.Article

REPARTITION DES TYPES DE ROCHES DANS LE JURASSIQUE DE LA BULGARIENACHEV I.1974; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1974, VOL. 23, P. 121 A 130Serial Issue

STRUCTURE ET PARTICULARITES GEOCHIMIQUES DES MINERAIS DE FER DU BAJOCIEN SUPERIEUR ET DU BATHONIENNACHEV I.1974; SPIS BALG. GEOL. DRUZH.; BGR; 1974, VOL. 35, NUM. 0001, P. 64 A 71Serial Issue

INTERRUPTIONS INTRA JURASSIQUES EN BULGARIENACHEV I.1972; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1972, VOL. 21, P. 181 A 206Serial Issue

LATERAL VARIATIONS IN THE TITHONIAN FLYSCH IN THE KRAISHTE (SW BULGARIA).NACHEV I.1969; C.R. ACAD. BULG. SCI.; BGR; 1969, VOL. 22, NUM. 0008, P. 931 A 934Miscellaneous

LITHOLOGY OF THE HETTANGIAN-KIMMERIDGIAN SEDIMENTS IN THE KRAISHTE.NACHEV I.1969; IZVEST. GEOL. INST., STRATIGR. LITOL., SOFIJA; BGR; 1969, VOL. 18, P. 127 A 159Miscellaneous

ON THE LOWER CRETACEOUS IN THE KRAISHTE.NACHEV I; NIKOLOV T.1968; SPIS. BALG. GEOL. DRUZH.; BGR; 1968, VOL. 29, NUM. 003 , P. 330 A 333Miscellaneous

Band-mixing and bound states in narrow-gap semiconductorsNACHEV, I. S.Physica scripta (Print). 1988, Vol 37, Num 5, pp 825-827, issn 0031-8949Article

SEDIMENTOLOGIYA NA GORNATA KREDA V ZAPADNO SREDNOGORIE = SEDIMENTOLOGIE DU CRETACE SUPERIEUR DE L'OUEST DES SREDNOGORIDESNACHEV I; GANEVA N; MILANOVA YA et al.1981; PALEONTOL. STRATIGR. LITOL.; ISSN 0204-7217; BGR; DA. 1981; NO 14; PP. 29-64; H.T. 5; ABS. ENG/RUS; BIBL. 1 P.; 5 TAB. ; 5 PLANCH. ; ILL./TABL./PL./ESQUISSE GEOL./COUPE GEOL./CORRELATION COUPEArticle

THE KOTEL OLISTOSTROME FORMATION IN THE EASTERN PART OF THE BALKANIDES.NACHEV I; SAPUNOV I; STEFANOV JU et al.1967; SPIS. BALG. GEOL. DRUZH.; BGR; 1967, VOL. 28, NUM. 0003, P. 261 A 273Miscellaneous

A Monte-Carlo model of ionic transport across a solid interfaceNACHEV, I. S.The Journal of physics and chemistry of solids. 1995, Vol 56, Num 8, pp 1039-1043, issn 0022-3697Article

Paleogeodynamics and manganese ores in BulgariaNACHEV, I. K.International geological congress. 1992, 2Vol, p. 210Conference Paper

Resedimentatsiya i flishoobrazuvaneNACHEV, I. K.Paleontologiâ, stratigrafiâ i litologiâ. 1988, Num 25, pp 61-74, issn 0204-7217Article