American Psychological Association 6th edition

Shishkin, G. I. (n.d.). Grid approximation of a singularly perturbed parabolic reaction-diffusion equation with a fast-moving source.

ISO-690 (author-date, English)

SHISHKIN, G. I., [no date]. Grid approximation of a singularly perturbed parabolic reaction-diffusion equation with a fast-moving source. .

Modern Language Association 9th edition

Shishkin, G. I. Grid Approximation of a Singularly Perturbed Parabolic Reaction-Diffusion Equation With a Fast-Moving Source.

Mohr Siebeck - Recht (Deutsch - Österreich)

Shishkin, G. I.: Grid approximation of a singularly perturbed parabolic reaction-diffusion equation with a fast-moving source,

Emerald - Harvard

Shishkin, G.I. (n.d.). “Grid approximation of a singularly perturbed parabolic reaction-diffusion equation with a fast-moving source”.

Warning: These citations may not always be 100% accurate.