- tourister.ru world/europe/russia/city/penza/…
- download.osmand.net wiki/Category:Botanical_…Botanical garden named Ivan Sprygin (10 F). ... Botanical gardens in Russia by region.
- cyberleninka.ru article/n/redkie-vidy-rasteniy-…
- academia.edu 32881729/Penza2015_pdfNASB Central Botanical Garden (CBG) in 2013-2016 as a lead agency, organized four international scientific workshops with with expedition trips "Strategies and...
- ym-penza.ru kulturnyj-sloj/kraevedenie/item/7472-…
- vk.com wall-200012174_3784?lang=enThe name of Ivan Sprygin is immortalized in the names of five plants, and also assigned to the genus of the herbaceous cabbage family (jumping).
- piokok.com profile/botanical_garden_penza_pnzgu/
- pguas.ru images/pdf/nauka/nauchnie_meropriyatiya/…The article discusses the typology, history of Botanical gardens, as well as a brief reference about the Penza Botanical garden named after I.I. Sprygin.
- 2gis.ru penza/firm/70000001066688108