Fredrikson, Margit. "Embryological Study of Herminium monorchis (Orchidaceae) Using Confocal Scanning Laser Microscopy." American Journal of Botany 77/1 (January 1990): 123-127.

Fredrikson, Margit. "Embryological Study of Herminium monorchis (Orchidaceae) Using Confocal Scanning Laser Microscopy." American Journal of Botany 77/1 (January 1990): 123-127.