1. Thermal Agitation of Electricity in Conductors;Johnson;Physical Review,1928
2. Thermal Agitation of Electric Charges in Conductors;Nyquist;Physical Review,1928
3. Noise Performance Factors in Communication Systems;Mumford,1968
4. Probability and Statistics;Burrington,1958
5. An Introduction to Probability Theory and Its Applications;Feller,1957