Shaped pulses Rectangular  Gaussian  Half-Gaussian   Hermite  BURP  Gaussian Cascades  Sneeze  Snob  Janus ( 90JMR397-90 , 93JMRA358-103 , 93JMRA234-104 , 94JMRA106-106 , 95JMRA116-114 )

Miscellaneous references: 90CP121 , 93JMRA184-105 , 94JMRA38-108 , 95JMRA129-116