Martinek , V. 1992. The sawfly Cephalcia falleni (Dalm) (Hym Pamphilidae) as a new pest on spruce on the Orlicke hory Mts. Lesnictvi (Prague) 38:205-220.
Martinek , V. 1992. The sawfly Cephalcia falleni (Dalm) (Hym Pamphilidae) as a new pest on spruce on the Orlicke hory Mts. Lesnictvi (Prague) 38:205-220.