CCL: Transition Dipole Moment Calculation

 Sent to CCL by: "Hemant Kumar Srivastava" [hemantkrsri^]
 Dear Researchers,
 I want to know how to calculate the Transition Dipole Moment?
 This is a new topic for me, so if anybody know some papers or
 tutorials on it please help me.
 Thanks a lot in advance
 With kind regards,