Likhenologicheskai︠a︡ ekskursii︠a︡ na Kavkaz v. 1899 g.
Published: 1899
Language: rus
Number of pages: 116
Notes: French summary, p. 115-116: Excursion lichénologique au Caucase.

From Izvi︠e︡stii︠a︡ Imperatorskago S.-Peterburgskago botanicheskago sada, vyp. III, 1901. (Bulletin du Jardin impérial botanique de St.-Pétersbourg, livr. III, 1901).

No. 3b in vol. with binder's title: Elenkin.