Verma, R. K., and S. Kumar. “Publication Output in Fiber Optics”. Czechoslovak Journal of Physics, vol. 36, no. 1, 1986, pp. 188-9, https://doi.org/10.1007/bf01599758.
Verma, R. K., & Kumar, S. (1986). Publication output in fiber optics. Czechoslovak Journal of Physics, 36(1), 188-189. https://doi.org/10.1007/bf01599758
Verma RK, Kumar S. Publication output in fiber optics. Czechoslovak Journal of Physics. 1986;36(1):188-9.