@misc{indiciaef6bed8eb554a,
  title = {[Improving the educational process].},
  author = {V I Lisunov and V Ia Nikitin and N Korovin and A Zhidkov},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5149312/},
  note = {Source identifier: 5149312}
}