@article{10_37236_969,
     author = {Wolfgang Haas and J\"orn Quistorff},
     title = {On mixed codes with covering radius 1 and minimum distance 2},
     journal = {The electronic journal of combinatorics},
     year = {2007},
     volume = {14},
     doi = {10.37236/969},
     zbl = {1160.94019},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/969/}
}