@article{JNSA_2018_11_6_a3,
     author = {Zhu, Ling },
     title = {Sharp generalized {Papenfuss-Bach-type} inequality },
     journal = {Journal of nonlinear sciences and its applications},
     pages = {770-777},
     publisher = {mathdoc},
     volume = {11},
     number = {6},
     year = {2018},
     doi = {10.22436/jnsa.011.06.04},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.22436/jnsa.011.06.04/}
}