@article {IOPORT.00064358,
    author       = {Tk\'a\v{c}, Michal},
    title        = {Simple 3-polytopal graphs with edges of only two types and shortness coefficients.},
    year         = {1992},
    journal      = {Mathematica Slovaca},
    volume       = {42},
    number       = {2},
    issn         = {0139-9918},
    pages        = {147-152},
    publisher    = {Mathematical Institute of the Slovak Academy of Sciences, Bratislava; Versita, Warsaw; Springer, Heidelberg},
    abstract     = {Summary: It is shown that the class of simple 3-polytopal graphs whose edges are incident with either two 7-gons or a 7-gon and a 4-gon, contains non- Hamiltonian members and even has shortness coefficient less then unity.},
    identifier   = {00064358},
}