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3. W. H. Schikhof, Ultrametric Calculus (Cambridge Univ. Press, Cambridge, 1984).
4. A. N. Sender, “Usage of p-adic Splines for Approximation of Functions from C(ℤp;ℚp) and C(ℤp; % MathType!MTEF!2!1!+- % feaagaart1ev2aaatCvAUfKttLearuqr1ngBPrgarmWu51MyVXgatC % vAUfeBSjuyZL2yd9gzLbvyNv2CaeHbd9wDYLwzYbItLDharyavP1wz % ZbItLDhis9wBH5garqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbb % L8F4rqqrFfpeea0xe9Lq-Jc9vqaqpepm0xbba9pwe9Q8fs0-yqaqpe % pae9pg0FirpepeKkFr0xfr-xfr-xb9adbaqaaeGaciGaaiaabeqaam % aaeaqbaaGcbaWefv3ySLgznfgDOjdarCqr1ngBPrginfgDObcv39ga % iyaacqWFkc-saaa!46BA! $$ \mathbb{K} $$ ),” Vestn. Brest. Univ., No. 3, 28–37 (2006).
5. A. Ya. Radyna, “Interpolation and Approximation of a Function from C(ℤp;ℝ) by p-adic Linear Splines,” Vestsi Nats. Akad. Navuk Belarusi, No. 2, 21–24 (2004).