@article{AM2_1988__35_2-3_137256,
     author = {William C. Waterhouse and K.J. Heuvers},
     title = {Sums of weight vectors and sums of semilinear functions.},
     journal = {Aequationes mathematicae},
     pages = {69--75},
     publisher = {mathdoc},
     volume = {35},
     number = {2-3},
     year = {1988},
     zbl = {0644.15002},
     url = {http://geodesic.mathdoc.fr/item/AM2_1988__35_2-3_137256/}
}