@article{10_4064_ap_10_1_81_100,
     author = {A. White},
     title = {Singularities of harmonic functions of three variables generated by {Whittaker-Bergman} operators},
     journal = {Annales Polonici Mathematici},
     pages = {81--100},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1961},
     doi = {10.4064/ap-10-1-81-100},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-10-1-81-100/}
}