Kāśikāvṛtti zu Aṣṭādhyāyī, 1, 1, 9.1, 1.19 ṛkāraṝkārayoḥ savarṇasañjñā vaktavyā /

Kāśikāvṛtti zu Aṣṭādhyāyī, 1, 1, 9.1, 1.22 ubhayoḥ ṛvarṇasya ṝvarṇasya cāntaratamaḥ savarṇo dīrgho nāsti iti ṛkāra eva dīrgho bhavati /

LiPur, 1, 7, 28.2 vaivasvata ṛkārastu manuḥ kṛṣṇaḥ sureśvaraḥ //

LiPur, 1, 17, 75.1 ṛkāro dakṣiṇaṃ tasya kapolaṃ parameṣṭhinaḥ /

BījaN, 1, 31.1 ṛkāre syān mahāraudrī jvālinī yoginīty api /