Checklist of the flora of the vicinity of Balakliya (Kharkiv region, Ukraine): native and alien taxa, distribution of rare plants, new findings.

Shynder, O., Negrash, J., (2021). Plant Introduction(89/90), 13-17. M.M. Gryshko National Botanical Garden of the NAS of Ukraine, Kiev, Ukraine. English language

The adventive species of Crassulaceae.

Byalt, V. V., (2011). Russian Journal of Biological Invasions 2(2/3), 155-157. Pleiades Publishing, Inc, Moscow, Russia. English language