The following publications are possibly variants of this publication:
- Delta-Wye Transformations and the Efficient Reduction of Almost-Planar GraphsIsidoro Gitler, Gustavo Sandoval-Angeles. endm, 62:129-134, 2017. [doi]
- On terminal delta-wye reducibility of planar graphsIsidoro Gitler, Feliu Sagols. networks, 57(2):174-186, 2011. [doi]
- Four-terminal reducibility and projective-planar wye-delta-wye-reducible graphsDan Archdeacon, Charles J. Colbourn, Isidoro Gitler, J. Scott Provan. jgt, 33(2):83-93, 2000. [doi]