• [1] S. Eilenberg, Ordered topological spaces, Amer. J. Math. 63 (1941), 39-45.
• [2] D. W. Hall and G. L. Spencer, Elementary topology, Wiley, New York, 1955.
• [3] C. Kuratowski, Topologie, Vol. I, 4th ed., Warsaw, 1958.
• [4] I. L. Lynn, Linearly orderable subspaces of the real line, Notices Amer. Math. Soc. 8 (1961), 161.

Bibliography

[1]

S. Eilenberg, Ordered topological spaces, Amer. J. Math. 63 (1941), 39-45.

[2]

D. W. Hall and G. L. Spencer, Elementary topology, Wiley, New York, 1955.

[3]

C. Kuratowski, Topologie, Vol. I, 4th ed., Warsaw, 1958.

[4]

I. L. Lynn, Linearly orderable subspaces of the real line, Notices Amer. Math. Soc. 8 (1961), 161.