@article{10_37236_1738,
     author = {Ilse Fischer and C. H. C. Little},
     title = {Even circuits of prescribed clockwise parity},
     journal = {The electronic journal of combinatorics},
     year = {2003},
     volume = {10},
     doi = {10.37236/1738},
     zbl = {1031.05073},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1738/}
}