Для цитирования:

  . Наносистемы: физика, химия, математика. 2020;11(2):131–137. https://doi.org/10.17586/2220-8054-2020-11-2-131-137

For citation:

De N. Reduced second Zagreb index of product graphs. Nanosystems: Physics, Chemistry, Mathematics. 2020;11(2):131–137. https://doi.org/10.17586/2220-8054-2020-11-2-131-137