@article{MPU92, <br>AUTHOR = {Mehlhorn, K. and Paul, W.J. and Uhrig, C.},<br>TITLE = {k Versus k+1 Index Registers and Modifiable Versus Non-modifiable Programs},<br>VOLUME = {101}, <br>YEAR = {1992},<br>PAGES = {123--129}, <br>URL = {http:///publikationen/MPU92.pdf}, <br>SERIES = {Information and Computation},<br>PUBLISHER = {Academic Press},<br>EE = {http://dx.doi.org/10.1016/0890-5401(92)90078-T},<br>}