@article{CM_1982__46_1_15_0,
     author = {Bank, Steven B.},
     title = {A note on a theorem of {C.} {L.} {Siegel} concerning {Bessel's} equation},
     journal = {Compositio Mathematica},
     pages = {15--32},
     publisher = {Martinus Nijhoff Publishers},
     volume = {46},
     number = {1},
     year = {1982},
     mrnumber = {660153},
     zbl = {0489.34003},
     language = {en},
     url = {http://www.numdam.org/item/CM_1982__46_1_15_0/}
}