@article{AFM_2018_43_1_a21,
     author = {Petar Melentijevic},
     title = {Invariant gradient in refinements of {Schwarz} and {Harnack} inequalities},
     journal = {Annales Fennici Mathematici},
     pages = {391--399},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2018},
     doi = {10.5186/aasfm.2018.4324},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2018.4324/}
}