Meaningfulness and the Erlanger program of Felix Klein
Mathématiques et Sciences humaines, Volume 101  (1988), p. 61-71
@article{MSH_1988__101__61_0,
     author = {Narens, L.},
     title = {Meaningfulness and the Erlanger program of Felix Klein},
     journal = {Math\'ematiques et Sciences humaines},
     publisher = {Ecole des hautes-\'etudes en sciences sociales},
     volume = {101},
     year = {1988},
     pages = {61-71},
     zbl = {0672.03003},
     mrnumber = {954945},
     language = {en},
     url = {http://www.numdam.org/item/MSH_1988__101__61_0}
}
Narens, L. Meaningfulness and the Erlanger program of Felix Klein. Mathématiques et Sciences humaines, Volume 101 (1988) , pp. 61-71. http://www.numdam.org/item/MSH_1988__101__61_0/

Baire R., Borel E., Hadamard J. and Lebesgue H.," Cinq lettres sur la théorie des ensembles", Bulletin de la Société Mathématique de France, 33 (1905) , 261-273. | JFM 36.0099.01 | Numdam | MR 1504528

Banach S., Tarski A., "Sur la décomposition des ensembles de points en parties respectivement congruentes", Fundamenta Mathematicae, 6 (1924), 244-277. | JFM 50.0370.02

Hausdorff, F., "Bemerkung über den Inhalt von Punktmengen", Mathematische Annalen, 75 (1914), 428-433. | JFM 45.0128.05 | MR 1511802

Hilbert D., Grunlagen der Geometrie, Stuttgart, B.G. Teubner, 1968. (First edition 1899). | MR 229120

Narens L., A Theory of Meaningfulness, in preparation, 1988.

Vitali G., Sul problema della misura dei gruppi di punti di una retta, Bologna, Tip. Camberini e Parmeggiani. | JFM 36.0586.03

Von Neumann J., "Zur allgemeinen Theorie des Masses", Fundamenta Mathematicae, 13 (1929), 73-116. | JFM 55.0151.01