The major references for the equine morbillivirus are:
Emerging Infectious Diseases
Vol. 1, No. 1 - January-March 1995 pps 31 - 33
Science
Vol. 268 cover photograph and pages 32 and 94 - 97 (7 April 1995)
The Medical Journal of Australia
Vol. 162, No. 12 pages 621 and 642 - 645 (19 June 1995)
There have also been postings to Promed e.g. archive.941213.
Ian Douglas