István Kovács, Géza Tóth. Multiple Coverings with Closed Polygons. Electr. J. Comb., 22(1):1, 2015. [doi]
@article{KovacsT15, title = {Multiple Coverings with Closed Polygons}, author = {István Kovács and Géza Tóth}, year = {2015}, url = {http://www.combinatorics.org/ojs/index.php/eljc/article/view/v22i1p18}, researchr = {https://researchr.org/publication/KovacsT15}, cites = {0}, citedby = {0}, journal = {Electr. J. Comb.}, volume = {22}, number = {1}, pages = {1}, }