@incollection{Allouche&Shallit:1990a,
	key = "Allouche and Shallit 1990a",
	author = "J.-P. Allouche and J. O. Shallit",
	title = "The ring of $k$-regular sequences",
	booktitle = STACS90,
	editor = "C. Choffrut and T. Lengauer",
	series = LNICS,
	volume = 415,
	year = "{\noopsort{1990a}}1990",
	publisher = SV,
	pages = "12-23"}

@incollection{Dumas:1993b,
	key = "Dumas 1993b",
	author = "P. Dumas",	
	title = "Algebraic aspects of $B$-regular series",
        booktitle = ICALP93,
        editor = "A. Lingas and R. Karlsson and A. Carlsson",
        series = LNICS,
	publisher = SV,
        year = "{\noopsort{1993b}}1993",
        volume = 700,
        pages = "457-468"}

@article{Dumas&Flajolet:1996,
	key = "Dumas and Flajolet 1996",
	author = "P. Dumas and P. Flajolet",
	title = "Asymptotique des {r\'ecurrences} {mahl\'eriennes}:
le cas cyclotomique",
	journal = JTNB,
	volume = 8,
	year = 1996,
	pages = "1-30"}

@article{Propp:1979,
	key = "Propp 1979",
	author = "J. Propp",
	title = "Problem proposal 474",
	journal = CRUXM,
	volume = 5,
	year = 1979,
	pages = "229",
	note = "Solution by G. Patruno, {\bf 6} (1980), 198"}

@article{Strauss&Shallit:1990,
	key = "Strauss and Shallit 1990",
	author = "N. Strauss and J. Shallit",
	title = "Advanced problem 6625",
	journal = AMM,
	volume = 97,
	year = 1990,
	pages = "252",
	note = "Solution by D. Zagier, {\bf 99} 1992, 66--69"}

@article{Allouche&Scheicher&Tichy:2000,
	key = "Allouche, Scheicher, and Tichy 2000",
	author = "J.-P. Allouche and K. Scheicher and R. F. Tichy",
	title = "Regular maps in generalized number systems",
	journal = MSL,
	volume = 50,
	year = 2000,
	pages = "41-58"}

@article{Allouche&Shallit:1992,
	key = "Allouche and Shallit 1992",
	author = "J.-P. Allouche and J. O. Shallit",
	title = "The ring of $k$-regular sequences",
	journal = TCS,
	volume = 98,
	year = 1992,
	pages = "163-197",
	comment = "checked"}

@article{Calkin&Wilf:2000,
	key = "Calkin and Wilf 2000",
	author = "N. Calkin and H. S. Wilf",
	title = "Recounting the rationals",
	journal = AMM,
	volume = 107,
	year = 2000,
	pages = "360-363"}