A model for space and time-like proton (neutron) form factors
  A model is suggested to describe the known experimental behavior of nucleon form factors both in space and time-like regions. It implies quarks to be colorless in the region of high intensity chomo-magnetic gluon field inside the nucleon. 
E. A. Kuraev, A. Dbeyssi and E. Tomasi-Gustafsson
hep-ph nucl-th