References

ÅK, 2, 1, 332.2
  vajrakaṃ vajrakakṣāraṃ kṣāraśreṣṭhaṃ vidārakam //Context
ÅK, 2, 1, 333.2
  vajrakakṣāram atyuṣṇaṃ tīkṣṇaṃ kṣāraṃ ca rodhanam //Context