Variation of piperidine alkaloids in ponderosa (Pinus ponderosa) and lodgepole pine (P. contorta) foliage from central Oregon
Gerson Elizabeth A.
Kelsey Rick G.
Journal of Chemical Ecology. Vol. 24, No.5 (1998), s. 815-827
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https://link.springer.com/article/10.1023/A:1022369416745