@article{700069,
     title = {Generic one-parameter flows on the torus and bifurcations of periodic orbits},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {99-104},
     mrnumber = {MR0353370},
     zbl = {0324.58016},
     url = {http://dml.mathdoc.fr/item/700069}
}

Brunovský, Pavol. Generic one-parameter flows on the torus and bifurcations of periodic orbits, dans Proceedings of Equadiff III, GDML_Books,  (1973), pp. 99-104. http://gdmltest.u-ga.fr/item/700069/