@misc{10_4153_CMB_1975_090_6,
     title = {The {Pn} {-Integral}},
     journal = {Canadian mathematical bulletin},
     pages = {493--497},
     year = {1975},
     volume = {18},
     number = {4},
     doi = {10.4153/CMB-1975-090-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-090-6/}
}