Savchuk , V. V. “$H^2$ - Norms of the Partial Sums of Fourier Series by Laguerre Basis for Bounded Holomorphic Functions”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 73, no. 1, Jan. 2021, pp. 128 -37, doi:10.37863/umzh.v73i1.2371.