@article{10_37236_1572,
     author = {Doron Zeilberger},
     title = {The umbral transfer-matrix method. {IV:} {Counting} self-avoiding polygons and walks},
     journal = {The electronic journal of combinatorics},
     year = {2001},
     volume = {8},
     number = {1},
     doi = {10.37236/1572},
     zbl = {0969.05006},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1572/}
}