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. |
|
Czeczuga, B., Huneck, S., and Cogt, U. 1994a. Carotenoids in lichens from Mongolia. J. Hattori Bot. Lab. 75:371-377. |
|