At Princeton , Tanenbaum first studied spectroscopy with Bricker .
Encouraged by professor Clark Bricker , who was himself moving , Tanenbaum went from Johns Hopkins to Princeton University for his doctoral work .
At Princeton , Tanenbaum first studied spectroscopy with professor .
Encouraged by professor Clark Bricker , who was himself moving , Tanenbaum went from Johns Hopkins to Princeton University for his doctoral work .