Jensh P. Guide to Afforestation in the Steppes of Southern Russia, Compiled by Philip Jensch. - Odessa: City. print., 1843. - 42,  p.
Certain idea of afforestation in the 40’s can be obtained from the manual of forestry in the steppe of a scientist Philip Jensch. The author describes in details issues related to choice of terrain, cutting roots and branches, timing of planting seedlings, etc.