A Trustworthy and Simple Method to Determine Pulsar Distances and the   Electron Distribution in the Galaxy
  We present the model for determination of pulsar distances or average electron distribution using a method similar to the widely used dependence of A$_V$ on distances in different directions. To have reliable pulsar distances, we have used several natural requirements and distances of pulsar-calibrators. We have constructed dispersion measure-distance relations for pulsars in 48 different directions. 
Oktay H. Guseinov, Efe Yazgan, Sevinc Tagieva and Aybuke Kupce Yoldas