Novotny Fighting to Delay Ouster as Czechs' Leader; NOVOTNY FIGHTING TO DELAY OUSTER
Pres Novotny calls Central Com meeting in fight to delay ouster as party and state chief; reptdly has achieved stay until late '68 through personal intervention of USSR party chief L I Brezhnev, who flew to Prague at behest of E Ger Chmn Ulbricht; opposition, led by Premier Lenart and Presidium members A Dubcek and M Chudik, later joined by O Cernik, has accused Novotny of blocking econ reforms and discriminating against Slovakia; Brezhnev reptdly obtained concessions from Novotny to Slovak leaders