Two-dimensional series evaluations via the elliptic functions of   Ramanujan and Jacobi
  We evaluate in closed form, for the first time, certain classes of double series, which are remindful of lattice sums. Elliptic functions, singular moduli, class invariants, and the Rogers--Ramanujan continued fraction play central roles in our evaluations 
Bruce C. Berndt, George Lamb, Mathew Rogers
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