@article{10_4064_cm105_2_1,
     author = {J. Kurek and W. M. Mikulski},
     title = {The {Euler} and {Helmholtz} operators
 on fibered manifolds with oriented bases},
     journal = {Colloquium Mathematicum},
     pages = {171--177},
     publisher = {mathdoc},
     volume = {105},
     number = {2},
     year = {2006},
     doi = {10.4064/cm105-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm105-2-1/}
}