Cima, Joseph A.; Matheson, Alec; Ross, William T. (2005). «The Cauchy transform». Quadrature domains and their applications. Oper. Theory Adv. Appl. Vol. 156. Basel: Birkhäuser. էջեր 79–111. MR2129737.
archive.org
George Boole, A treatsie on differential equations (1859), Internet Archive.
Boole, George (1857). «On the Comparison of Transcendents, with Certain Applications to the Theory of Definite Integrals». Philosophical Transactions of the Royal Society of London. 147: 745–803. doi:10.1098/rstl.1857.0037. JSTOR108643.
Andrei Nikolaevich Kolmogorov, Adolf Pavlovich Yushkevich (editors), Mathematics of the 19th Century: function theory according to Chebyshev, ordinary differential equations, calculus of variations, theory of finite differences (1998), pp. 130–2; Google Books.
Boole, George (1857). «On the Comparison of Transcendents, with Certain Applications to the Theory of Definite Integrals». Philosophical Transactions of the Royal Society of London. 147: 745–803. doi:10.1098/rstl.1857.0037. JSTOR108643.
