http://www.math.psu.edu/yzheng/m597k/m597kLII2.pdf

http://math.sfsu.edu/beck/papers/complex.pdf

http://www.math.columbia.edu/~ikofman/complexproblems.pdf

http://www.ies.co.jp/math/java/comp/cplint_ztomin/cplint_ztomin.html

http://math.fullerton.edu/mathews/c2003/ComplexIntegralMod.html

http://www.mathnotes.org/?pid=109#?pid=109

http://en.wikipedia.org/wiki/Methods_of_contour_integration

http://theoretical-physics.net/0.1/src/math/transforms.html

http://spiff.rit.edu/richmond/occult/bessel/bessel.html

http://math.arizona.edu/~gabitov/teaching/101/math_424_524/Final/Sample.pdf

http://mathhelpforum.com/calculus/190475-strange-complex-integral-path-question.html

https://www.classle.net/book/application-residue-theorem

http://kr.cs.ait.ac.th/~radok/math/mat10/hntansw.htm

http://www.math.ust.hk/~maykwok/courses/ma304/06_07/Complex_4.pdf

http://mathworld.wolfram.com/ContourIntegration.html

http://www-thphys.physics.ox.ac.uk/people/FrancescoHautmann/ComplexVariable/s1_11_sl6.pdf

http://math.stackexchange.com/questions/125717/complex-integral-over-a-circle

http://en.wikipedia.org/wiki/Morera's_theorem

http://mathworld.wolfram.com/MorerasTheorem.html

http://www.encyclopediaofmath.org/index.php/Morera_theorem

http://math.furman.edu/~dcs/courses/math39/lectures/lecture-33.pdf

http://mathworld.wolfram.com/MaximumModulusPrinciple.html

http://en.wikipedia.org/wiki/Liouville's_theorem_(complex_analysis)

http://www.cut-the-knot.org/fta/fta_sketch3.shtml

http://www.cut-the-knot.org/fta/boas.shtml

http://s-mat-pcs.oulu.fi/~ssa/Eka/kaharj.html

http://math.fullerton.edu/mathews/c2003/contourintegral/ContourIntegralModHome/ContourIntegralModHome.html

http://www.math.ubc.ca/~cass/courses/m266/ch3a.pdf

http://www.cavehill.uwi.edu/fpas/cmp/staff/bsing/ma30056/sheet4q.pdf