@article {517, title = {A Fast, Stable Quadrature Phase Generator for Multiple-Pulse Nmr}, journal = {Review of Scientific Instruments}, volume = {61}, year = {1990}, note = {Rev Sci InstrumDc425Times Cited:8Cited References Count:14}, month = {May}, pages = {1474-1479}, isbn = {0034-6748}, doi = {Doi 10.1063/1.1141155}, url = {://WOS:A1990DC42500016}, author = {Shykind, D. N. and Chingas, G. C. and Pines, A. and Shaka, A. J.} }