“M. E. H. Ismail, The zeros of basic Bessel functions the functions J+ax (x) and the associated orthogonal polynomials, J. Math. Anal. Appl. 86 (1982), 1-19.”
This was my first thought. / sarc
He was an English major. I was a english/econ major. I doubt this is it. (I use my fingers to add)