@article{MM2_1997__93_4_156307,
     author = {Qi S. Zhang},
     title = {Gaussian {Bounds} for the {Fundamental} {Solutions} ...},
     journal = {Manuscripta mathematica},
     pages = {381--390},
     publisher = {mathdoc},
     volume = {93},
     number = {4},
     year = {1997},
     zbl = {0886.35004},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156307/}
}