@article{10_4064_cm_39_1_185_188,
     author = {H. W. Berkowitz},
     title = {Restricted {Eulerian} circuits in directed graphs},
     journal = {Colloquium Mathematicum},
     pages = {185--188},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {1978},
     doi = {10.4064/cm-39-1-185-188},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-39-1-185-188/}
}