The fermionic free energy and entropy are calculated in Gibbons-Maeda dilat
on black hole background, by using 't Hooft's brick wall model. it turns ou
t that the fermionic entropy in Gibbons-Maeda dilaton black hole background
space-time is 7/2 times the Bosonic entropy. (C) 2000 Published by Elsevie
r Science B.V. All rights reserved.