Paleogenova︠i︡a flora ︠i︡uzhnoĭ Mongolii - Makulbekov, Nurgali Makulbekovich (Trudy (Sovmestna︠i︡a sovetsko-mongolʹska︠i︡a paleontologicheska︠i︡a ėkspedi︠t︡si︠i︡a (1974- )), 1988)