@unpublished{barrett:1964:sft,
    author = {Barrett, R. F.},
     title = {Tables of modified {S}truve functions of orders zero and unity},
      note = {Part of the {U}npublished {M}athematical {T}ables. Reviewed in
              Math. Comp., v. 18 (1964), no. 86, p. 332.},
      year = {1964}}