@article{10_4153_CMB_1973_008_9,
     author = {Chv\'atal, V.},
     title = {Flip-Flops in {Hypohamiltonian} {Graphs}},
     journal = {Canadian mathematical bulletin},
     pages = {33--41},
     year = {1973},
     volume = {16},
     number = {1},
     doi = {10.4153/CMB-1973-008-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-008-9/}
}