@article{AM2_1981__22_136875,
     author = {H. Groemer},
     title = {On coverings of plane convex sets by translates of strips.},
     journal = {Aequationes mathematicae},
     pages = {215--222},
     publisher = {mathdoc},
     volume = {22},
     year = {1981},
     zbl = {0481.52009},
     url = {http://geodesic.mathdoc.fr/item/AM2_1981__22_136875/}
}