TY  - JOUR
AU  - Tarek Sayed Ahmed
TI  - The class of 2-dimensional neat reducts is not elementary
JO  - Fundamenta Mathematicae
PY  - 2002
SP  - 61
EP  - 81
VL  - 172
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm172-1-5/
DO  - 10.4064/fm172-1-5
LA  - en
ID  - 10_4064_fm172_1_5
ER  -