@article{10_1017_S001708950001003X,
     author = {Seifter, Norbert and Woess, Wolfgang},
     title = {Approximating graphs with polynomialgrowth},
     journal = {Glasgow mathematical journal},
     pages = {1--8},
     year = {2000},
     volume = {42},
     number = {1},
     doi = {10.1017/S001708950001003X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708950001003X/}
}