(Berlin, Julius Springer, 1926). 8vo. Without wrappers. Extracted from ""Mathematische Annalen. Begründet 1868 durch Alfred Clebsch und Carl Neumann. 95. Band"". Pp. 278-306.
Reference : 44774
First printing. ""In the present paper Karl Menger proves that if M is a bounded continuum containing no domain then a necessary and sufficient. Condition that M be a continuous curve [regular curve] is that, for each positive number e, M is the sum of a finite number of continua all of diameter less than e, such that the common part of any two of these continua is vacuous or totally disconnected [finite]."" (Roberts. Concerning Non-Dense Plane Continua).
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