NFS on a UNIX system V r3.0

[Equipe Hypercubes]

We have two Intel SYP301 (AT386) running UNIX System V r3.0. One  
of these computers is connected to an iPSC/2 Hypercube. I search 
an implementation of NFS for this computer. Does anyone have        
some informations to get this product (vendors, University, etc, ...) ?
 
 Thanks.
  
  Thierry PRIOL
  Institut de Recherche en Informatique et Systemes Aleatoires (IRISA)
  Campus de Beaulieu
  35042 RENNES CEDEX
  FRANCE