The evolution of parton distributions beyond leading order: the singlet   case
  A complete description of the calculation of anomalous dimensions (GLAP splitting functions) is given for parton distributions which appear in space-like processes. The calculation is performed in the light-cone gauge. The results are in agreement with the previous results of Furmanski and Petronzio. 
R.K. Ellis (Fermilab/CERN) and W. Vogelsang (Rutherford Lab)