The not-so-sophisticated air conditioning system of Eastern Bloc's Ikarus buses - Hooniverse

Located in a rather northerly part of the world, Poland isn't exactly a tropical country. It's so far north that winter days can see less than eight hours

The News for June 28th, 2019 - Hooniverse

Bus Stop Classics: American-Ikarus/North American Bus Industries – From Hungary to Alabama - Curbside Classic

Bus Stop Classics: American-Ikarus/North American Bus Industries – From Hungary to Alabama - Curbside Classic

The not-so-sophisticated air conditioning system of Eastern Bloc's Ikarus buses - Hooniverse

Ikarus 120e - the (electric) rebirth of a well-known brand - Urban Transport Magazine

Hungary home for Arriva Ikarus

This Hungarian bus served American cities at the height of the Cold War

Ikarus (Hungarian company) - Wikipedia

Crown-Ikarus 286 - Wikipedia

Classification and Characteristics of Bus Air conditioning

Cool passenger busses - Aviation talk - Apog Labs Forum