@article{Allouche&Johnson:1995,
	key = "Allouche and Johnson 1995",
	author = "J.-P. Allouche and T. Johnson",
	title = "Finite automata and morphisms in assisted musical composition",
	journal = "J. New Music Research",
	volume = 24,
	year = 1995,
	pages = "97-108"}

@inproceedings{Allouche&Johnson:1996,
	key = "Allouche and Johnson 1996",
	author = "J.-P. Allouche and T. Johnson",
	title = "Narayana's cows and delayed morphisms",
	booktitle = "Cahiers du {GREYC}, Troisi\`emes Journ\'ees d'Informatique
Musicale (JIM 96)",
	volume = 4,
	year = 1996,
	pages = "2-7"}

@book{Norgard:1999,
	key = "N{\o}rg{\aa}rd 1999",
	author = "P. N{\o}rg{\aa}rd",
	title = "Trommebogen/Drumbook",
	publisher = "Edition Wilhelm Hansen",
	address = "Copenhagen",
	year = 1999}

@incollection{Kullberg:1996,
	key = "Kullberg 1996",
	author = "E. Kullberg",
	title = "Beyond infinity:  On the infinity series ---
the {DNA} of hierarchical music",
	booktitle = "The Music of Per N{\o}rg{\aa}rd:  Fourteen
Interpretive Essays",
	editor = "A. Beyer",
	publisher = "Scolar Press",
	year = 1996,
	pages = "71-93"}

@incollection{Hansen:1996,
	key = "Hansen 1996",
	author = "I. Hansen",
	title = "Waves, hierarchies, interferences:  {Per N{\o}rg{\aa}rd}
and percussion music",
	booktitle = "The Music of Per N{\o}rg{\aa}rd:  Fourteen
Intepretive Essays",
	editor = "A. Beyer",
	publisher = "Scolar Press",
	year = 1996,
	pages = "107-125"}