@article{MOMA_1979__87_177913,
     author = {Robin Fellgett},
     title = {A {Class} of {Flows} with quasi discrete {Spectrum.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {209--228},
     publisher = {mathdoc},
     volume = {87},
     year = {1979},
     zbl = {0367.54018},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1979__87_177913/}
}