@article{10_5817_AM2016_4_207,
     author = {Khanh, Nguyen Ngoc},
     title = {Gradient estimates of {Li} {Yau} type for a general heat equation on {Riemannian} manifolds},
     journal = {Archivum mathematicum},
     pages = {207--219},
     publisher = {mathdoc},
     volume = {52},
     number = {4},
     year = {2016},
     doi = {10.5817/AM2016-4-207},
     mrnumber = {3610650},
     zbl = {06674900},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5817/AM2016-4-207/}
}