Roy, Ashim K.Sharma, S. K.Gupta, Ranjanet al.2012-03-052012-03-052011-11-22http://hdl.handle.net/11007/386enAnalytic formulasscattering efficiencies of PAHsExtinction spectrumSilicate grainsAnalytic formulas for frequency and size dependence of absorption and scattering efficiencies of PAHsPresentation