THE TIMBERLINES OF NORTHERN AMERICA AND THEIR INTERPRETATION

[1] Pollen analysis of Kodiak bogs [J]. ECOLOGY, 1934, 15 : 97 - 100

[2] CLARKE CHD, 1940, NAT MUS CANADA B 25, V96

[3] Contributions of botanical science to the knowledge of postglacial climates [J]. JOURNAL OF GEOLOGY, 1942, 50 (08) : 981 - 994

[4] DAVIDSON G, 1867, US COAST SURVEY ANN, P278

[5] FERNOW BE, 1902, HARRIMAN ALASKA EXPE, V2, P244

[6] Griggs RF, 1938, ECOLOGY, V19, P548, DOI 10.2307/1930933

[7] The edge of the forest in Alaska and the reasons for its position [J]. ECOLOGY, 1934, 15 : 80 - 96

[8] GRIGGS RF, 1922, VALLEY 10000 SMOKES, P330

[9] Griggs RF, 1914, B TORREY BOT CLUB, V41, P25, DOI [10.1086/674525, 10.2307/2479433, DOI 10.2307/2479433]

[10] THE NORSEMEN IN GREENLAND RECENT DISCOVERIES AT HERJOLFSNES [J]. GEOGRAPHICAL REVIEW, 1925, 15 (04) : 605 - 616

[1] Pollen analysis of Kodiak bogs [J]. ECOLOGY, 1934, 15 : 97 - 100

[2] CLARKE CHD, 1940, NAT MUS CANADA B 25, V96

[3] Contributions of botanical science to the knowledge of postglacial climates [J]. JOURNAL OF GEOLOGY, 1942, 50 (08) : 981 - 994

[4] DAVIDSON G, 1867, US COAST SURVEY ANN, P278

[5] FERNOW BE, 1902, HARRIMAN ALASKA EXPE, V2, P244

[6] Griggs RF, 1938, ECOLOGY, V19, P548, DOI 10.2307/1930933

[7] The edge of the forest in Alaska and the reasons for its position [J]. ECOLOGY, 1934, 15 : 80 - 96

[8] GRIGGS RF, 1922, VALLEY 10000 SMOKES, P330

[9] Griggs RF, 1914, B TORREY BOT CLUB, V41, P25, DOI [10.1086/674525, 10.2307/2479433, DOI 10.2307/2479433]

[10] THE NORSEMEN IN GREENLAND RECENT DISCOVERIES AT HERJOLFSNES [J]. GEOGRAPHICAL REVIEW, 1925, 15 (04) : 605 - 616