1. Gerunds and representations
2. Bick T.A. Introduction to Abstract Mathematics. Academic Press New York (1971) p.35.]] Bick T.A. Introduction to Abstract Mathematics. Academic Press New York (1971) p.35.]]
3. Crowe M.J. A History of Vector Analysis: The evolution of the idea of a vectorial system. University of Notre Dame Press. (1967) 270p.]] Crowe M.J. A History of Vector Analysis: The evolution of the idea of a vectorial system. University of Notre Dame Press. (1967) 270p.]]
4. Davis John C. Markov Chains: In: Statistics and Data Analysis in Geology. John Wiley & Sons New York. 2nd Edition (1986) Chapter 4.]] Davis John C. Markov Chains: In: Statistics and Data Analysis in Geology. John Wiley & Sons New York. 2nd Edition (1986) Chapter 4.]]