*<nowiki><ref name="jacob">Jacob, Daniel J. ''Introduction to Atmospheric Chemistry'' Princeton University: 1999</ref></nowiki>
*<nowiki><ref name="jacob">Jacob, Daniel J. ''Introduction to Atmospheric Chemistry'' Princeton University: 1999</ref></nowiki>
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*<nowiki>]]<ref name="Schwarz">Schwarz, Stephen E. and William G. Oldham. ''Electrical Engineering: An Introduction, 2e.'' Oxford University Press: 1993.</ref></nowiki>