@article{10_21136_AM_1983_104022,
     author = {Medek, V\'aclav},
     title = {Boundary of the union of rectangles in the plane},
     journal = {Applications of Mathematics},
     pages = {161--172},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1983},
     doi = {10.21136/AM.1983.104022},
     mrnumber = {0701735},
     zbl = {0509.68066},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1983.104022/}
}