APA (7th ed.) Citation

Polkowski, L. (2007). Concept Approximation in Mathematics and Computer Science. An Essay in Homage to Zdzisław Pawlak. Fundamenta Informaticae, 75(1-4), 435.

Chicago Style (17th ed.) Citation

Polkowski, Lech. "Concept Approximation in Mathematics and Computer Science. An Essay in Homage to Zdzisław Pawlak." Fundamenta Informaticae 75, no. 1-4 (2007): 435.

MLA (9th ed.) Citation

Polkowski, Lech. "Concept Approximation in Mathematics and Computer Science. An Essay in Homage to Zdzisław Pawlak." Fundamenta Informaticae, vol. 75, no. 1-4, 2007, p. 435.