@article{AIF_1975__25_3-4_309_0,
     author = {It\^o, Seiz\^o},
     title = {On definitions of superharmonic functions},
     journal = {Annales de l'Institut Fourier},
     pages = {309--316},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {25},
     number = {3-4},
     year = {1975},
     doi = {10.5802/aif.585},
     mrnumber = {54 #5484},
     zbl = {0303.31008},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.585/}
}