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O. A. Betekhtina

  • Sreda i zhiznʹ v geologicheskom proshlom =Sreda i zhiznʹ v geologicheskom proshlom =
  • Biostratigrafii͡a︡ i korreli͡a︡t͡s︡ii͡a︡ uglenosnykh otlozheniĭ pozdnego paleozoi͡a︡ po nemorskim dvustvorkamBiostratigrafii͡a︡ i korreli͡a︡t͡s︡ii͡a︡ uglenosnykh otlozheniĭ pozdnego paleozoi͡a︡ po nemorskim dvustvorkam
  • Fauna i flora verkhnepaleozoĭskikh otlozheniĭ gorlovskogo basseĭnaFauna i flora verkhnepaleozoĭskikh otlozheniĭ gorlovskogo basseĭna
  • Fauna i stratigrafii︠a︡ srednego i verkhnego paleozoi︠a︡ SibiriFauna i stratigrafii︠a︡ srednego i verkhnego paleozoi︠a︡ Sibiri
  • Novoe o faune i stratigrafii srednego i pozdnego paleozo͡ia SSSRNovoe o faune i stratigrafii srednego i pozdnego paleozo͡ia SSSR
  • Paleontologii͡a i biostratigrafii͡a paleozoi͡a SibiriPaleontologii͡a i biostratigrafii͡a paleozoi͡a Sibiri
  • Paleontologii︠a︡ i biostratigrafii︠a︡ paleozoi︠a︡ SibiriPaleontologii︠a︡ i biostratigrafii︠a︡ paleozoi︠a︡ Sibiri
  • Sreda i zhizn v geologicheskom proshlomSreda i zhizn v geologicheskom proshlom
  • Sreda i zhiznʹ v geologicheskom proshlomSreda i zhiznʹ v geologicheskom proshlom
  • Sreda i zhiznʹ v geologicheskom proshlomSreda i zhiznʹ v geologicheskom proshlom
  • Sreda i zhiznʹ v geologicheskom proshlomSreda i zhiznʹ v geologicheskom proshlom
  • Sreda i zhiznʹ v geologicheskom proshlomSreda i zhiznʹ v geologicheskom proshlom