Czeczuga, B., Obermayer, W., Upreti, D.K., and Sharma, L.R. 1996. Carotenoids in lichens in various regions of the Himalayas. J. Hattori Bot. Lab. 80:323-330. |
|
Czeczuga, B., and Yoshida, K. 1991c. Carotenoids in certain lichens from the Chichibu mountains, Central Japan. Feddes Repert. 102:661-666. |
|
Czeczuga, B., Skirina, I.F., Maximov, C.B., and Stepanenko, L.S. 1989a. Investigations on carotenoids in lichens. XIX. Carotenoids in lichens of the tundra of Kamchatka region (Far East). Phyton. 29:7-13. |
|