I think this is it:

Inter-group helping relations as power relations: Maintaining or ...
Following this, a model of inter-group helping relations is proposed. It suggests that when the high status group provides to the low status group ...
http://cat.inist.fr/?aModele=afficheN&cpsidt=13846580

Informal Helping Relations in Organizations: A Cross-Cultural ...
EJ227272 - Informal Helping Relations in Organizations: A Cross-Cultural Comparison.
http://eric.ed.gov/ERICWebPortal/recordDetail?accno=EJ227272

Helping to Improve the Group Stereotype: On the Strategic ...
Inter-group helping relations as power relations: Helping relations as affirming or challenging inter-group hierarchy. Journal of Social Issues, 58, ...
http://psp.sagepub.com/cgi/content/refs/33/6/776



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Note added at 8 mins (2007-06-07 19:47:12 GMT)
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Of course, singular: helping relation, as in these examples:

[PDF] H O W L I F E C O M E S F R O M W H O L E N E S SFile Format: PDF/Adobe Acrobat - View as HTML
In each case, the helping relation between two centers, A and B, may be seen in the fact that ... Although, in one sense, the helping relation ...
www.livingneighborhoods.org/library/noo-b1-109-118.pdf

[PDF] The metamorphosis: The nature of chronic illness and its challenge ...
File Format: PDF/Adobe Acrobat
are the primary goals) the helping relation between doctor and patient is, ... Chronic illness challenges this conception of the helping relation. ...
www.springerlink.com/index/W216112082862381.pdf