Columbia subject headings:
Harvard subject headings:
Germany--Relations--Russia.
Neurologists--Germany--Biography--Dictionaries.
Neurologists--Russia--Biography--Dictionaries.
Neuropathologists--Germany--Biography--Dictionaries.
Neuropathologists--Russia--Biography--Dictionaries.
Psychiatrists--Germany--Biography--Dictionaries.
Psychiatrists--Russia--Biography--Dictionaries.
Russia--Relations--Germany.
Princeton subject headings:
Dictionaries.
Germany--Relations--Russia.
Neurologists--Germany--Biography--Dictionaries.
Neurologists--Russia--Biography--Dictionaries.
Neurosciences--Germany--History--19th century--Bio-bibliography.
Neurosciences--Russia--History--19th century--Bio-bibliography.
Psychiatrists--Germany--Biography--Dictionaries.
Psychiatrists--Russia--Biography--Dictionaries.
Russia--Relations--Germany.