@article{oai:soar-ir.repo.nii.ac.jp:00012284, author = {ASADA, AKIRA}, issue = {1}, journal = {信州大学理学部紀要}, month = {Dec}, note = {Article, 信州大学理学部紀要 2(1): 1-17(1967)}, pages = {1--17}, title = {Elliptic Semi-complexes}, volume = {2}, year = {1967} }