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@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/} }
H. Groemer. On coverings of plane convex sets by translates of strips.. Aequationes mathematicae, Tome 22 (1981), pp. 215-222. http://geodesic.mathdoc.fr/item/AM2_1981__22_136875/