
    In the Matter of Ralph W. Kerbs, on Behalf of Himself and Other Tenants in Premises 308 East 79th Street, New York, New York, Appellant, against Robert C. Weaver, as State Rent Administrator, Respondent, and Sitek Realty Corp., Intervenor-Respondent.
   Order affirmed, without costs. Breitel, J. P., M. M. Frank and Bergan, JJ., concur; Valente and McNally, JJ., dissent and vote to reverse and annul determination insofar as it was found there was no substantial diminution of essential services.  