RELATION BETWEEN THE METAMORPHIC GRADE OF COAL AND THE DENSITY OF CARBONIFEROUS HOST DEPOSITS IN THE WESTERN DONBAS.BELOCERKOVEC JU I.1969; DOKL. EARTH SCI. SECT.; USA; 1969(4), VOL. 186, P. 90 A 91Miscellaneous

LIAISON ENTRE LE DEGRE DE METAMORPHISME DES CHARBONS ET LA DENSITE DES FORMATIONS CARBONIFERES ENCAISSANTES DANS L'OUEST DU DONBASS.BELOCERKOVEC JU I.1969; DOKL. AKAD. NAUK S.S.S.R.; SUN; 1969(6), VOL. 186, NUM. 0006, P. 1375 A 1376Miscellaneous

ON THE CONNECTION OF THE PHYSICAL PROPERTIES OF THE COALBEARING DEPOSITS OF THE WEST DONETS BASIN WITH GEOLOGICAL FACTORS.BELOCERKOVEC JU I; GORDON JANOVSKIJ FA.1967; DOP. AKAD. NAUK. U.R.S.R.; SUN; 1967, NUM. 0001, P. 34 A 37Miscellaneous