Anita Das 0001 B. S. Panda 0001 Rajendra P. Lal A linear time algorithm for constructing tree 3-spanner in simple chordal bipartite graphs. 301-304 2006 conf/cit/2006 ICIT https://doi.org/10.1109/ICIT.2006.12 https://doi.ieeecomputersociety.org/10.1109/ICIT.2006.12 db/conf/cit/cit2006.html#DasPL06