

@article {5673,
	title = {{Genetic Variability of Hepatitis A Virus}},
	journal = {The Journal of General Virology},
	volume = {84},
	number = {Pt12},
	year = {2003},
	pages = {3191{\textendash}3201},
	author = {Costa-Mattioli, M and Di Napoli, A and Ferr{\'e}, V and Billaudel, S and Perez-Bercoff, R and Cristina, J}
}
