TY  - RPRT
TI  - Pingos in central Alaska
AU  - G.W. Holmes
AU  - D.M. Hopkins
AU  - H.L. Foster
PY  - 1968
DO  - 10.3133/b1241h
UR  - https://pubs.usgs.gov/publication/b1241H
ID  - b1241H
ER  -