@article{1978:judge:representa,
title = {Representation, comprehension and communication of sets: the role of number. I. (Sect. 1–6.1)},
year = {1978},
note = {},
journal = {KO KNOWLEDGE ORGANIZATION},
pages = {126--133},
author = {Judge, Anthony J. N.},
volume = {5},
number = {3}
}