@article{AM2_1975__12_136485,
     author = {George E. Andrews},
     title = {Partially {Ordered} {Sets} and the {Rogers-Ramanujan} {Identities.}},
     journal = {Aequationes mathematicae},
     pages = {94--107},
     year = {1975},
     volume = {12},
     zbl = {0298.10011},
     url = {http://geodesic.mathdoc.fr/item/AM2_1975__12_136485/}
}