@misc{https://doi.org/10.3334/ornldaac/416, doi = {10.3334/ORNLDAAC/416}, url = {http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=416}, author = {CRAMER, W.P. and LEEMANS, R.}, language = {en}, title = {Global 30-Year Mean Monthly Climatology, 1930-1960, V2.1 (Cramer and Leeman)}, publisher = {ORNL Distributed Active Archive Center}, year = {1999} }