@article{442129,
      author = {Ivanov, Stefan P. and Vassilev, Dimiter N.},
      url = {http://library.usi.edu/record/442129},
      title = {Extremals for the Sobolev inequality and the quaternionic  contact Yamabe problem [electronic resource] /},
      publisher = {World Scientific,},
      recid = {442129},
      pages = {1 online resource (xvii, 219 p.)},
      address = {Singapore ;},
      year = {2011},
}