I. INTRODUCTION  
II. OBSERVATIONS AND DATA REDUCTION  
III. MODELS  
A. Dark Matter  
B. dSph interstellar medium  
IV. DETECTION  
A. Point-sources near the dSph center and their possible association to a cuspy DM profile  
B. Diffuse emission  
V. CONSTRAINTS ON WIMP PARAMETER SPACE  
VI. COMPARISON WITH PREVIOUS WORKS  
VII. DETECTION PROSPECTS  
VIII. CONCLUSIONS