@article{1967-lander-survey
,author={Leon J. Lander and Thomas R. Parkin and John L. Selfridge}
,ISSN={0025--5718}
,journal={Mathematics of Computation}
,MR={36:5060}
,pages={446--459}
,title={{A survey of equal sums of like powers}}
,volume={21}
,year={1967}
}