The Restaurant at DoubleTree by Hilton Zagreb
DoubleTree by Hilton Hotel Zagreb's restaurant is referenced by reviewers writing for major publications. Of the 3 publications that we tracked, 2 acknowledged the restaurant, such as Time Out and Oyster.
DoubleTree by Hilton Zagreb 
Time Out
Oyster
Time Out "Down on the ground floor, the the hotel bar and the Oxbo restaurant share a relaxing open-plan social space"
Oyster "There's a trendy restaurant and bar serving buffet breakfast (for a fee) and international dishes for lunch and dinner"
