Czeczuga, B., Mendez, A.M., and López-Figueiras, M. 1997d. Carotenoids in terrestrial, epilithic and epiphytic lichens from Venezuelan Andes. Feddes Repert. 108:169-183. |
|
Czeczuga, B., and Worthington, R.D. 1997a. Carotenoids in lichens from the States of New Mexico and Texas in the United States of America. Feddes Repert. 108:387-399. |
|