\Bibitem{Gun64} \by R.~C.~Gunning \paper Lectures on modular forms \jour Matematika \yr 1964 \vol 8 \issue 6 \pages 3--68 \mathnet{http://mi.mathnet.ru/mat335} \mathscinet{https://mathscinet.ams.org/mathscinet-getitem?mr=0132828} \zmath{https://zbmath.org/?q=an:0178.42901}