Giusi Castiglione Antonio Restivo Roberto Vaglica A reconstruction algorithm for L-convex polyominoes. 58-72 2006 356 Theor. Comput. Sci. 1-2 http://dx.doi.org/10.1016/j.tcs.2006.01.045 db/journals/tcs/tcs356.html#CastiglioneRV06