Piritta Numminen

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2009

1 Piritta Numminen, Pertti Vakkari: Question types in public libraries' digital reference service in Finland: Comparing 1999 and 2006. JASIST 60(6): 1249-1257 (2009)

	2009
1		Piritta Numminen, Pertti Vakkari: Question types in public libraries' digital reference service in Finland: Comparing 1999 and 2006. JASIST 60(6): 1249-1257 (2009)

Coauthor Index

1 Pertti Vakkari [1]