NEW : `` I ca n't do anything but cheer ! '' Tomas Transtromer 's spokeswoman says . NEW : The award has gone to obscure Europeans three of the past four years . Comment:
NEW : `` I ca n't do anything but cheer ! '' Tomas Transtromer 's spokeswoman says . NEW : The award has gone to obscure Europeans three of the past four years . Peruvian writer Mario Vargas Llosa received the literature award last year .