@book{14955,
	author = {Sahoo, Prasanna. and Kannappan, Pl.},
	title = {Introduction to functional equations},
	publisher = {Chapman and Hall/CRC,},
	year = {2011.},
	address = {Boca Raton :},
	note = {"A Chapman & Hall book."},
	url = {http://marc.crcnetbase.com/isbn/9781439841167}
}