1. Andrews, G.E., Askey, R., Roy, R.: Special Functions, Encyclopedia of Mathematics and Its Applications, vol. 71. Cambridge University Press, Cambridge (1999)
2. Bettin, S., Bober, J.W., Booker, A.R., Conrey, B., Lee, M., Molteni, G., Oliver, T., Platt, D.J., Steiner, R.S.: A conjectural extension of Hecke’s converse theorem. Ramanujan J. 47(3), 659–684 (2018)
3. Blomer, V.: Shifted convolution sums and subconvexity bounds for automorphic $L$-functions. Int. Math. Res. Not. 73, 3905–3926 (2004)
4. Bykovskiĭ, V.A.: A trace formula for the scalar product of Hecke series and its applications. Zap. Nauchn. Sem. S.-Peterburg. Otdel. Mat. Inst. Steklov. 226, 235–236 (1996)
5. Chinta, G., Diaconu, A.: Determination of a ${\rm GL}_3$ cuspform by twists of central $L$-values. Int. Math. Res. Not. 48, 2941–2967 (2005)