Tóth József; Pénzes István; Béla D.: The hierarchy and attraction areas of the educational centers of the Southern part of the Hungarian Great Plain. In: Acta Universitatis Szegediensis : acta geographica, (11). pp. 83-91. (1971)
Pénzes István; Tóth József; Béla D.: The relations of the health centers of the Southern part of the Great Hungarian Plain. In: Acta Universitatis Szegediensis : acta geographica, (11). pp. 67-81. (1971)