@article{10_4153_CMB_1982_057_x,
     author = {Cross, G. E.},
     title = {The {Exceptional} {Sets} in the {Definition} of the {Pn} {-Integral}},
     journal = {Canadian mathematical bulletin},
     pages = {385--391},
     year = {1982},
     volume = {25},
     number = {4},
     doi = {10.4153/CMB-1982-057-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1982-057-x/}
}