Tables of Lommel's functions of two pure imaginary variables. (Tablit︠s︡y t︠s︡ilinbricheskikh funkt︠s︡iĭ ot bvukh mnimykh peremennykh) / 
Bark, L. S.
Kuznetsov, P. I.
Oxford, 
1965.
Joint authors: L.S. Bark and P.I. Kuznetsov.