<![CDATA[PKK Library Search for 'su:{Nonlinear Optics} and au:Butcher, Paul N. and su-to:Polarization Light and itype:BK and su-to:Nonlinear Optics and au:Butcher, Paul N. and homebranch:IITK and available']]> /cgi-bin/koha/opac-search.pl?q=ccl=su%3A%7BNonlinear%20Optics%7D%20and%20au%3AButcher%2C%20Paul%20N.%20and%20su-to%3APolarization%20%20Light%20and%20itype%3ABK%20and%20su-to%3ANonlinear%20Optics%20and%20au%3AButcher%2C%20Paul%20N.%20and%20homebranch%3AIITK%20and%20available&format=rss2 0 20