@article{JEMS_2006_8_2_a2,
     author = {Adimurthi and Fr\'ed\'eric Robert and Michael Struwe},
     title = {Concentration phenomena for {Liouville's} equation in dimension four},
     journal = {Journal of the European Mathematical Society},
     pages = {171--180},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {2006},
     doi = {10.4171/jems/44},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/44/}
}