Natyashastra
अथैषां रसभावेषु विनियोगं निबोधत । भ्रमणं चलनोद्वृत्ते निष्क्रामो वीररौद्रयोः ॥ १०२॥
Now listen about their uses in ॥ different॥ Sentiments and States. Bhramaṇa (moving round), Valana (turning) and Samudvṛtta (raising of eyeballs)—in the Heroic and the Furious Sentiments.
english translation
athaiSAM rasabhAveSu viniyogaM nibodhata । bhramaNaM calanodvRtte niSkrAmo vIraraudrayoH ॥ 102॥
hk transliteration by Sanscript