kimakṣarasya svaryamāṇasya svaryate ⃒ ardhaṁ hrasvasya pādo dīrghasyetyeke ⃒ sarvamiti śāṅkhamitriḥ ⃒- Deshpande (1997), a pag.3.3.31-33
udāttādanudāttaṁ svaryate ⃒- Deshpande (1997), a pag.3.3.18