1. B.K. Beohar and B. L. Jadiya, “Degree of approximation by Cesaro mean of Fourier-Laguerre series”, Indian Journal of Pure and Applied Mathematics, 11, pp. 1162–1165, (1980).
2. D. P. Gupta, “Degree of approximation by Cesaro mean of Fourier-Laguerre expansions”, Acta Scientiarum Mathematicarum(Szeged), 32, pp. 255–259, (1971).
3. Approximation of functions belonging to L[0, ∞) by product summability means of its Fourier-Laguerre series
4. X. Z. Krasniqi, “On the degree ofv approximation of a function by (C, 1)(E, q) means of its Fourier-Laguerre series”, Int. J. Anal. Appl, 1 (1), pp. 33–39, (2013).
5. Degree of approximation by $ (N, p, q) $ summability means of the Fourier-Laguerre expansion