Spanning trees — short or small
R. Ravi,
R. Sundaram,
Madhav V. Marathe,
Daniel J. Rosenkrantz,
and S. S. Ravi
SIAM J. Discrete Mathematics 9(2):178–200, May 1996
Proc. 5th Symp. Discrete Algorithms, ACM
and SIAM, Jan 1994, pp. 546–555
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