@article{oai:teapot.lib.ocha.ac.jp:00034828,
 author = {Ito, Mariko},
 issue = {2},
 journal = {お茶の水女子大學自然科學報告},
 month = {Dec},
 note = {application/pdf, 紀要論文},
 pages = {137--146},
 title = {The Existence of Positive Harmonic Functions and Green Operators},
 volume = {29},
 year = {1978}
}