@article{MOMA_1988__105_2_178379,
     author = {Johan Thorbi\"ornson},
     title = {A {Counterexample} to the {Strong} {Subadditivity} of {Extremal} {Plurisubharmonic} {Functions.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {245--248},
     publisher = {mathdoc},
     volume = {105},
     number = {2},
     year = {1988},
     zbl = {0637.32012},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1988__105_2_178379/}
}