http://en.wikipedia.org/wiki/Fourier_transform
http://www.efunda.com/math/fourier_series/fourier_integral.cfm
http://www.math.osu.edu/~gerlach.1/math/BVtypset/node29.html
http://mathworld.wolfram.com/FourierTransform.html
http://people.ucsc.edu/~lewis/Math140/Fourier_transf.pdf
http://www.ingelec.uns.edu.ar/pds2803/Materiales/LibrosPDF/Papoulis/TOC.HTM
http://people.ucsc.edu/~lewis/Math140/Fourier_transf.pdf
http://www.math.osu.edu/~gerlach.1/math/BVtypset/node31.html
http://www.thedirectdata.com/materials/math/Fourier%20Integral.pdf
http://web.physics.ucsb.edu/~fratus/Phys100A/Boris/282_f_(5).pdf
http://www.maths.ed.ac.uk/~jmf/Teaching/MT3/IntegralTransforms.pdf
http://books.google.com/books/about/Lectures_on_Fourier_Integrals.html?id=-vU02QewWK8C
http://www.math.umn.edu/~olver/pd_/ft.pdf
http://www.damtp.cam.ac.uk/user/reh10/lectures/nst-mmii-handout21.pdf
http://ebookbrowse.com/fourier-integral-example-ppt-d356341079
http://www.uio.no/studier/emner/matnat/fys/FYS3140/index-eng.xml
http://hans.math.upenn.edu/~zheliu/spring2012/exam
http://www.math.rutgers.edu/~tumulka/teaching/spring12/421/
https://ece.uwaterloo.ca/~math213/
http://saturn.ece.ndsu.nodak.edu/ecewiki/images/6/65/Ece343_08s_test2.pdf
http://ggnindia.dronacharya.info/MEDept/Downloads/QuestionBank/IIIsem/Math_ME_IIIsem.pdf