The structure of multiplets in 1D and 2D NMR spectra contains a wealth of information about scalar and dipolar couplings. Several methods can be used:

Deconvolution in the frequency or in the time domain (92JMR425-96, 92JMR553-97, 92IJC231-32)

Maximum entropy (88JMR306-76, 96JMRA191-119, 93JMRA162-101)

use of trigonometric functions (95JMRA43-112)

frequency-domain analysis (93JMRA81-102, 99JMR133-141 )

Other methods and applications in: 97MRC91, 95JMRB123-117, 96JMRA126-118