@article{PORMA_1959__18_4_114830,
     author = {Wu, Ta-Sun},
     title = {A note on the general cohomology theory},
     journal = {Portugaliae mathematica},
     pages = {231--233},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1959},
     mrnumber = {0126268},
     zbl = {0111.35402},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1959__18_4_114830/}
}