 Pāṇini cites at least ten grammarians and linguists before him.According to Sumitra Mangesh Katre, the ten Vedic scholar names he quotes are of Apisali, Kashyapa, Gargya, Galava, Cakravarmana, Bharadvaja, Sakatayana, Sakalya, Senaka and Sphotayana.According to Kamal K. Misra, Pāṇini also refers to Yaska, "whose writings date back to the middle of the 4th century B.C."