Comment on: Weak Anisotropy and Disorder Dependence of the In-Plane   Magnetoresistance in High-Mobility (100) Si Inversion Layers
  Comment on: Weak Anisotropy and Disorder Dependence of the In-Plane Magnetoresistance in High-Mobility (100) Si Inversion Layers 
V.T. Dolgopolov (Institute of Solid State Physics, Chernogolovka,   Russia) and A.Gold (Centre d`Elaboration de Materiaux et...