Maximal volume enclosed by plates and proof of the chessboard conjecture. - Károly J. Böröczky; Imre Bárány; Endre Makai; János Pach (Discret. Math., 1986)

Gaps in Difference Sets, and the Graph of Nearly Equal Distances. - Paul Erdös; Endre Makai; János Pach; Joel H. Spencer (Applied Geometry And Discrete Mathematics, 1990)

Nearly Equal Distances in the Plane. - Paul Erdös; Endre Makai; János Pach (Comb. Probab. Comput., 1993)