a person in the record
Pyotr Vtorov
Russian zoologist, biogeographer and ecologist1938 to 1979
Wikidata names Alexander Petrovitch Kuzyakin, Anatoly Voronov, Andrei Bannikov, and Pyotr Smolin as doctoral advisors and names Anatoly Voronov and Andrei Bannikov as teachers. Linked to Wikidata, Wikipedia, and 2 other registers.

How to read the marksstated by Wikidata or indexed by OpenAlex
Advisors on Wikidata4
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
- stated by Wikidata
Teachers and mentors2
Wikidata's "student of" and "student" statements: a line of training beside the lineage, never a thesis supervision and never counted with one.
- a teacher or mentor, stated by Wikidata: not a thesis supervision
- a teacher or mentor, stated by Wikidata: not a thesis supervision
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataAlexander Petrovitch Kuzyakinstated by WikidataAnatoly Voronovstated by WikidataAndrei Bannikovstated by WikidataPyotr Smolin
- 2 steps up
stated by WikidataGeorgi Petrovich Dementiev
- 3 steps up
stated by WikidataMikhail Menzbier
- 4 steps up
stated by WikidataNikolai Severtzov
Education and career2
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undatedstudied
- undated