TY  - JOUR
AU  - William A. Webb
TI  - Rationals Not Expressible as a Sum of Three Unit Fractions.
JO  - Elemente der Mathematik
PY  - 1974
SP  - 1
EP  - 6
VL  - 29
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ELMA_1974__29_141131/
ID  - ELMA_1974__29_141131
ER  -