Table 4 Book usage half-life of CLC number R94
From: Exploring utility function in utility management: an evaluating method of library preservation
Year | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
|---|---|---|---|---|---|---|---|
Checkout | 71 | 196 | 201 | 132 | 82 | 54 | 18 |
From: Exploring utility function in utility management: an evaluating method of library preservation
Year | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
|---|---|---|---|---|---|---|---|
Checkout | 71 | 196 | 201 | 132 | 82 | 54 | 18 |