@article{MM2_1985__52_155080,
     author = {Wolfgang Hein},
     title = {Durch graduierte {Lie-Algebren} definierte {Paar-Algebren.}},
     journal = {Manuscripta mathematica},
     pages = {97--130},
     year = {1985},
     volume = {52},
     zbl = {0569.17006},
     url = {http://geodesic.mathdoc.fr/item/MM2_1985__52_155080/}
}