@article{Slisenko:1980,
	key = "Slisenko 1980",
	author = "A. O. Slisenko",
	title = "Determination in real time of all the periodicities
in a word",
	journal = DAN,
	volume = 251,
	year = 1980,
	pages = "48-51",
	note = "In Russian.  English translation in {\it Soviet Math.\ Dokl.\ }
{\bf 21} (1980), 392--395"}

@article{GolombS:1989,
	key = "S. Golomb 1989",
	author = "S. W. Golomb",
	title = "Distributions of periods and frequencies of runs in
random binary sequences",
	journal = AAM,
	volume = 10,
	year = 1989,
	pages = "278-284"}

@article{Halava&Harju&Ilie:2000,
	key = "Halava, Harju, and Ilie 2000",
	author = "V. Halava and T. Harju and L. Ilie",
	title = "Periods and binary words",
	journal = JCTA,
	volume = 89,
	year = 2000,
	pages = "298-303"}

@article{Iliopoulos&Mouchard:1999,
	key = "Iliopoulos and Mouchard 1999",
	author = "C. S. Iliopoulos and L. Mouchard",
	title = "Quasiperiodicity:  from detection to normal forms",
	journal = JALC,
	volume = 4,
	year = 1999,
	pages = "213-228"}