1

California Univ., CA, USA

2

Simon Fraser Univ., Burnaby, BC, Canada

3

Stanford Univ., CA, USA

4

Dept. of Comput. Sci., Helsinki Univ., Finland

5

Sch. of Inf. & Software Eng., Ulster Univ., UK

6

Inst. of Comput. Sci., Munchen Univ., Germany

7

Essex Univ., Colchester, UK

8

Bar-Ilan Univ., Ramat-Gan, Israel

9

Tokyo Univ., Japan

10

Med. Res. Inst., Tokyo Med. & Dental Univ., Japan

11

British Telecom Res. Labs., Ipswich, UK

12

Jet Propulsion Lab., California Inst. of Tech. CA USA

13

Kyoto Univ., Japan

14

GMD, Sankt Augustin, Germany