Instant aid. V.1. Part2 Differential calculus of functions of one variable. Reference manual on higher mathematics. Mathematical analysis an introduction to the analysis, derivative, integral / AntiDemidovich. T.1. Ch.2 Differentsialnoe ischislenie funktsiy odnoy peremennoy. Spravochnoe posobie po vysshey matematike. Matematicheskiy analiz vvedenie v analiz, proizvodnaya, integral