LJUBLJANA (Slovenia), March 1 (SeeNews) – There is a solid business case behind the plans of Slovenian insurer Zavarovalnica Triglav [LJE:ZVTG] to a make a play for Croatia Osiguranje [ZSE:CROS-R-A] or/and Serbian peer DDOR [BSE:DDNS], a Ljubljana-based analyst said on Friday.