@article{MAN_1973__203_162450,
     author = {J\"urgen Elstrodt},
     title = {Die {Resolvente} zum {Eigenwertproblem} der automorphen {Formen} in der hyperbolischen {Ebene.} {Teil} {I.}},
     journal = {Mathematische Annalen},
     pages = {295--330},
     year = {1973},
     volume = {203},
     zbl = {0239.10014},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__203_162450/}
}