Langoju, R.Patil, A.Rastogi, P.2007-07-252007-07-252007-07-25200610.1364/OE.14.007686https://infoscience.epfl.ch/handle/20.500.14299/9894WOS:0002401641000259188Estimation of multiple phases in interferometry in the presence of non-linear arbitrary phase stepstext::journal::journal article::research article