@article{MAN_1943__119_160120,
     author = {L. Sauer},
     title = {Parametrixmethode zur {L\"osung} von {Randwertproblemen}},
     journal = {Mathematische Annalen},
     pages = {67--130},
     year = {1943},
     volume = {119},
     url = {http://geodesic.mathdoc.fr/item/MAN_1943__119_160120/}
}