| Article ID: | iaor19942033 |
| Country: | Germany |
| Volume: | 40 |
| Start Page Number: | 191 |
| End Page Number: | 201 |
| Publication Date: | May 1993 |
| Journal: | Metrika |
| Authors: | Kageyama S., Setoya H. |
This gives a complete proof for bounds of the efficiency, conjectured by Das and Kageyama, on robustness of extended balanced incomplete block designs against the unavailability of any number of observations in a block.