共 22 条
- [1] BECKER GF, 1898, US GEOL SURV ANN REP, V18, P19
- [2] Bell R., 1897, SCOTTISH GEOGR MAG, V13, P281, DOI 10.1080/14702549708555005
- [3] BROCKMANN JH, 1919, BEITR GEOBOL LANDESA, V6
- [4] The layering habit in Sitka spruce and the two western hemlocks [J]. BOTANICAL GAZETTE, 1931, 91 : 0441 - 0451
- [6] DAVIDSON G, 1867, US COAST SURVEY ANN, P278
- [7] FERNOW BE, 1902, HARRIMAN ALASKA EXPE, V2, P244
- [8] FRIES TE, 1913, BOTANISCHE UNTERSUCH
- [9] GRIGGS RF, 1920, OHIO STATE U B, V24
- [10] Griggs RF, 1914, B TORREY BOT CLUB, V41, P25, DOI [10.1086/674525, 10.2307/2479433, DOI 10.2307/2479433]