Teteryuk,V.K. (1966)
Some results of a study on a correlation method of the Coal Beds of the Donetzk Basin with the help of microspores [ Nekotorye Rezul'Taty Razrabotki Metodiki korrelyatzii Ugol'Nykh Plastov Donetzkovo Basseyna po Mikrosporam ] International Palynological Conference,2nd.Utrecht,The Netherlands
P. 62- 67