Natyashastra
ततोऽर्धकलिकान्पातान्कुर्याल्लघ्वक्षरेषु च । गुर्वक्षरे तालगीतपातास्तु कलिकाः स्मृताः ॥ २१७॥
Then, one should make half-measures (ardha-kalikā) of beats on the short syllables; on the long syllables, the beats (tāla), songs (gīta), and measures (pāta) are known as full measures (kalikā).
english translation
tato'rdhakalikAnpAtAnkuryAllaghvakSareSu ca । gurvakSare tAlagItapAtAstu kalikAH smRtAH ॥ 217॥
hk transliteration by Sanscript