@article{10_1017_S0017089500005875,
     author = {Rao, Murali},
     title = {Integral {Harnack} inequality},
     journal = {Glasgow mathematical journal},
     pages = {115--120},
     year = {1985},
     volume = {26},
     number = {2},
     doi = {10.1017/S0017089500005875},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005875/}
}