@article{10_4064_sm_18_2_137_159,
     author = {M. Burnat},
     title = {\"Uber partielle {Differentialgleichungen} vom elliptischen {Typus} mit singul\"aren {Koeffizienten}},
     journal = {Studia Mathematica},
     pages = {137--159},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1959},
     doi = {10.4064/sm-18-2-137-159},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-18-2-137-159/}
}