@article{AM2_1988__36_2-3_137286,
     author = {C.J. Colbourn and Douglas R. Stinson},
     title = {Edge-coloured designs with block size four.},
     journal = {Aequationes mathematicae},
     pages = {230--245},
     publisher = {mathdoc},
     volume = {36},
     number = {2-3},
     year = {1988},
     zbl = {0658.05016},
     url = {http://geodesic.mathdoc.fr/item/AM2_1988__36_2-3_137286/}
}