Author:

Kalkreuth,W.D.;Holz,M.;Cazzulo-Klepzig,M.;Marques-Toigo,M.;Utting,J.;Semkiwa,P.

Year:

1999

Title:

A comparative study of the geology, petrology and palynology of Permian coals in Tanzania and southern Brazil.

Reference:

Kalkreuth,W.D. et al. (1999) A comparative study of the geology, petrology and palynology of Permian coals in Tanzania and southern Brazil. Journal of African Earth Sciences Vol. 29 # 1 P. 91- 104

Google Academy:

try to search by title in english