I only wish the article expanded on this particular area -

"the targeted parent should be taught a series of responses to parental alienation that can allow the targeted parent to maintain the high road while not becoming overly passive or reactive." 

If you ever run across information on this, please pass it along. Any clinical information that would enlighten DH and I to better contend with PAS is invaluable. It's like we're in a grieving process vacillating between avoiding and accepting alienation. 

We still hope that SD will eventuallly seek a therapist. However, BM is disordered and "alienation" is a generational response to dealing with the emotional discomfort of divorce on her side. She is from a highly dysfunctional family. Based on PAS "generational" studies, this fact weighs heavy on any positive outcome. SD, who is now an adult, displays the same personality disorders that BM has.  Be it nature or nurture, the clinically-defined traits of NPD are present.  Sadly, everything I've read on NPD is dismaying with little hope of a turnaround. We are still coming to terms with accepting the fact that PAS may not resolve and we need help with this process.