an Entity references as follows:
The Alikhanian–Alikhanov spectrometer was a large solenoid physical instrument constructed by brothers Abraham Alikhanov and Artem Alikhanian at the Aragats scientific station in Armenia. The spectrometer was unique in the world. The Alikhanian-Alikhanov mass spectrometer became the prototype for hodoscopic devices that have played a major role in nuclear physics research. The memorial Alikhanian-Alikhanov magnet spectrometer is situated on Mt. Aragats, Armenia.