This web page lists the references in my paper:

"On the Density of Sequences of Integers the Sum of No Two of Which is a Square II. General Sequences" with J.C. Lagarias and A.M. Odlyzko, Journal of Combinatorial Theory Series A, 34(1983), p. 123-139.

• R. Ayoub, An Introduction to the Analytic Theory of Numbers, Mathematical Surveys, No. 10, American Mathematical Society, Providence, R.I., 1965.
• H. Davenport, Analytic Methods for Diophantine Equations and Diophantine Inequalities, Ann Arbor Press, Ann Arbor, Michigan, 1962.
• P. Erdos, "Problems from West Coast Number Theory Conferences, (R. Guy, Ed.), Problem 268.
• P. Erdos and R. L. Graham, Old and new problems and results in combinatorial number theory, Monogr. l'Esnseignement Mathe., 28(1980).
• G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers, 4th ed., Oxford Univ. Press, London/New York, 1960.
• J. C. Lagarias, A. M. Odlyzko and J. B. Shearer, "On the density of sequences of integers the sum of no two of which is a square I. Arithmetic progressions", J. Comb. Theory Ser. A, 33(1982), 167-185.
• A. V. Malyshev, "On the representation of integers by a positive quadratic form", (Russian), Trudy Mat. Inst. Steklov., 65(1962).
• J. P. Massias, "Sur les suites dont les sommes des termes 2 a 2 ne sont pas des carres", to be published.
• A. Sarkozy, "On difference sets of sequences of integers", I, Acta Math. Acad. Sci. Hungar., 31(1978), 125-149, MR 57 5942.