@article {IOPORT.02046873,
    author       = {Romanovsky, J. V. and Stukalov, D. Yu.},
    title        = {Rooted and unrooted tree-search algorithms.},
    year         = {1997},
    journal      = {Vestnik St. Petersburg University. Mathematics},
    volume       = {30},
    number       = {1},
    issn         = {1063-4541},
    pages        = {35-40},
    publisher    = {Allerton Press, Inc., New York; Springer, New York},
    abstract     = {Summary: Enumerating algorithms for all nonisomorthic trees, rooted and nonrooted, are given, some properties of trees are proved. Some programs in the functional programming language Miranda realizing the suggested algorithms are worked out.},
    identifier   = {02046873},
}