spgindia.orgspgindia.org/geohorizon/jan_2007/huygens_priciple.pdf · Max Born and Emil Wolf,...
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spgindia.orgspgindia.org/geohorizon/jan_2007/huygens_priciple.pdf · Max Born and Emil Wolf, Principle Of Optics, 7th (expanded) edition, Cambridge University Press, 1999, 413-422
