@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000871,
 author = {Masunaga, Hirohiko and Nakajima, Teruyuki},
 issue = {16},
 journal = {Journal of the atmospheric sciences},
 month = {Aug},
 pages = {2455--2467},
 title = {The Effective Cloud Fraction of Broken Clouds Obtained by Multistream Radiative Transfer. Part 1: Longwave Radiation},
 volume = {58},
 year = {2001}
}