ГОСТ:
Larsen A. H. et al. The atomic simulation environment—a Python library for working with atoms //Journal of Physics Condensed Matter. — 2017. — T.29. —№. 27 —C. 273002-273002
MLA:
Larsen, Ask Hjorth, et al. "The atomic simulation environment—a Python library for working with atoms" Journal of Physics Condensed Matter 29.27 (2017): 273002-273002