{{sfn | Fleĭshman | Poljakov | 2018 | p=}}

* {{cite book | last=Fleĭshman | first=Lazarʹ | last2=Poljakov | first2=Fedor B. | title=Across Borders | publisher=Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften | publication-place=Berlin | date=2018 | isbn=978-3-631-76163-2 | oclc=on1064772145 | language=de}}

<ref name="w718">{{cite book | last=Fleĭshman | first=Lazarʹ | last2=Poljakov | first2=Fedor B. | title=Across Borders | publisher=Peter Lang Gmbh, Internationaler Verlag Der Wissenschaften | publication-place=Berlin | date=2018 | isbn=978-3-631-76163-2 | oclc=on1064772145 | language=de | page=}}</ref>