@article{AFM_1992_17_2_a6,
     author = {N.A. Watson},
     title = {Generalizations of the spherical mean convexity theorem on subharmonic functions},
     journal = {Annales Fennici Mathematici},
     pages = {241--255},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1992},
     doi = {10.5186/aasfm.1992.1733},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1992.1733/}
}