«GILĀN xv. Popular and Literary Perceptions of Identity». Encyclopaedia Iranica (på engelsk). Besøkt 30. juli 2025. «Among the preferred diet of the Raštis, olives (prepared with pomegranate juice and ground walnut: zeytun parvarda), beef, and fish often arouse a deep sense of revulsion among the ʿArāqis for whom the Raštis are kalla-māhi-ḵvor (lit. “fish-head eaters), a nickname combining aversion with derision. In fact, the inhabitants of the Caspian plain only occasionally eat fried fish-head, and are generally well aware of the bemused scorn with which their neighbors view this fringe item on their menu. Even so, they praise the nutritious qualities of fish-heads, which are rich in phosphorus and are thought to stimulate the brain.»