@article{10_4064_ap102_1_4,
     author = {Bayram Ṣahin},
     title = {Biharmonic {Riemannian} maps},
     journal = {Annales Polonici Mathematici},
     pages = {39--49},
     publisher = {mathdoc},
     volume = {102},
     number = {1},
     year = {2011},
     doi = {10.4064/ap102-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap102-1-4/}
}