Academic Ancestry

a person in the record

Vassian Sergeevich Porfirʹev

Soviet botanist1907 to 1990

Wikidata names Andrey Gordyagin as doctoral advisor and names Andrey Gordyagin as teacher. Linked to Wikidata, VIAF, and ISNI.

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Vassian Sergeevich Porfirʹev, pictured

Two steps up and one down. Solid lines from Wikidata. The full sheet opens at four up and two down.

How to read the marksstated by Wikidata or indexed by OpenAlex

Advisors on Wikidata1

From Wikidata, shown separately from the thesis records.

Teachers and mentors1

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

    Andrey Gordyagin

The line above and below1 step

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.