au.\*:("BOJCHEV S")
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REGIME OPTIMAL DE FONCTIONNEMENT DES FILTRES-PRESSESBOJCHEV S; TSANKOV TS.1975; GOD. VISSH. INZHENER.-STROITEL. INST.; BGR; DA. 1975-1976 PUBL. 1977; VOL. 26; NO 2; PP. 83-90; ABS. RUS/FRE; BIBL. 4 REF.Article
APPLICATION DE L'OZONE DANS LE TRAITEMENT DES EAUX NATURELLESBOJCHEV S; TSANKOV TS.1982; GOD. VISS. INST. ARHIT. STROIT. SOFIYA; ISSN 506141; GBR; DA. 1982; VOL. 28; NO 7; PP. 25-33; ABS. FRE; BIBL. 8 REF.Article
ECONOMIC EFFECTIVITY DETERMINATION IN POLYMETAL OCCURRENCE MINING WORKS = DETERMINATION DE LA RENTABILITE DANS LES EXPLOITATIONS POLYMETALLIQUESPASHOV P; BOICHEV S; BOJCHEV S et al.1979; WORLD MINING CONGRESS. 10/1979/ISTANBUL; TUR; ANKARA: MADEN TETK. ARAMA ENST.; DA. 1979; VOL. 4; 10 P.Conference Paper