ON THE ORIGIN OF DARK COLOURING OF MIDDLE SARMATIAN LIMESTONES OF THE STEPPE CRIMEA.BELOKRYS LS; ISHCHENKO DI.1968; DOP. AKAD. NAUK. U.R.S.R.; SUN; 1968, NUM. 0007, P. 579 A 582Miscellaneous

SUCCES DES GEOLOGUES SOVIETIQUES DANS L'ETUDE DU BASSIN DE MINERAI DEFER DE KRIVOI ROG.BELEVCEV JA N; ISHCHENKO DI.1967; AKAD. NAUK UKR. S.S.R., GEOL. ZH ; SUN; 1967(8), VOL. 27, NUM. 0004, P. 44 A 52Miscellaneous

SARMANTIAN DOLOMITES OF THE TARKHANKUTSKII PENINSULA.BELOKRYS LS; KRASNOV EV; ISHCHENKO DI et al.1967; LITHOL. MINER. RESOURCES; USA; 1967(4), NUM. 0002, P. 184 A 194Miscellaneous