@book{31910,
	author = {Krithivasan, Kamala and Rama, R.  and Rama, R. ; jt.ed.},
	title = {Formal language aspects of natural computing },
	publisher = {Ramanujan Mathematical Society},
	year = {2007},
	series = {Ramanujan Mathematical Society lecture note series },
	address = {Mysore}
}