[1] E. Čech: Topological spaces. ČSAV, Prague, 1966. MR 35 # 2254. MR 0211373

[2] H. Kok: On conditions equivalent to the orderability of a connected space. Nieuw Arch. Wiskunde (3), 18 (1970), 250-270. MR 0300249 | Zbl 0202.21803

[3] D. J. Lutzer: A metrization theorem for linearly orderable spaces. Proc. Amer. Math. Soc. 22 (1969), 557-558. MR 40 # 2012. MR 0248761 | Zbl 0177.50703

[4] P. R. Meyer: On total orderings in topology. Third Prague Symp. on general topology, 1971, 301-396. MR 0388314