Chiman Qadir, I. Hamad, and W. Aziz. “Existence Canard Solutions For Four Dimensional Hindmarsh-Rose Model With Respect to Infinitesimal Parameter”. Zanco Journal of Pure and Applied Sciences, vol. 36, no. 2, Apr. 2024, pp. 96-106, doi:10.21271/ZJPAS.36.2.9.