Reference
Naresh Magan, Mark K. Smith (1996): Isolation of the Endophytes Lophodermium piceae and Rhizosphaera kalkhoffii from Sitka Spruce Needles in Poor and Good Growth Sites and in vitro Effects of Environmental Factors. – Phyton, Annales Rei Botanicae, Horn – 36_3: 103 - 110.