[1] APPL RES CORP,LANDOVER,MD 20785
[2] UNIV LONDON QUEEN MARY COLL,DEPT PHYS,LONDON E1 4NS,ENGLAND
[3] HELSINKI UNIV TECHNOL,RADIO LAB,SF-02150 ESPOO,FINLAND
[4] UNIV FLORIDA,ROSEMARY HILL OBSERV,GAINESVILLE,FL 32611
[5] UNITED KINGDOM INFRARED TELESCOPE,HILO,HI 96720
[6] UNIV TURKU,TURKU UNIV OBSERV,SF-20520 TURKU 52,FINLAND
[7] USN,RES LAB,EO HULBURT CTR SPACE RES,WASHINGTON,DC 20375