Encyclopedia Britannica in: Panini Indian grammarian http://www.britannica.com/EBchecked/topic/441324/Panini, britannica.com.
“The most interesting non-Western grammatical tradition—and the most original and independent—is that of India, which dates back at least two and one-half millennia and which culminates with the grammar of Panini, of the 5th century BCE. There are three major ways in which the Sanskrit tradition has had an impact on modern linguistic scholarship.”
Pavle Ivić in: Linguistics http://www.britannica.com/EBchecked/topic/342418/linguistics#ref411727, britannica.com, 9 April 2013.
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Pāṇini 37
ancient Sanskrit grammarianRelated quotes
A.K. Ramanujan in: South Asian arts http://www.britannica.com/EBchecked/topic/556016/South-Asian-arts/65258/Modern-Indian-dance#ref532709, britannica.com, 17 March 2014
An Analytical Study of 'Sanskrit' and 'Panini' as Foundation of Speech Communication in India and the World
Sir Monier Monier-Williams in: Indian Wisdom https://books.google.co.in/books?id=CgBAAQAAMAAJ&pg=PA172, W. H. Allen & Company, 1876, p. 172.

Sir Monier Monier-Williams in: Indian Wisdom https://books.google.co.in/books?id=CgBAAQAAMAAJ&pg=PA172, W. H. Allen & Company, 1876, p. 172.
Gazetteer in: Sanskrit literature http://dsal.uchicago.edu/reference/gazetteer/pager.html?objectid=DS405.1.I34_V02_298.gif,The Digital South Asia Library - University of Chicago (dsal.uchicago.edu)

Source: "A synopsis of linguistic theory 1930-1955." 1957, p. 21; as cited in: Olivares, Beatriz Enriqueta Quiroz. The interpersonal and experiential grammar of Chilean Spanish: Towards a principled Systemic-Functional description based on axial argumentation. Diss. University of Sydney, 2013.
"Truth Is the Death of Intention: Benjamin's Esoteric History of Romanticism," Studies in Romanticism, Vol. 31, No. 4, Winter 1992, p. 458
An Analytical Study of 'Sanskrit' and 'Panini' as Foundation of Speech Communication in India and the World