If you're looking for assistance, I recommend checking out the rcrossref
library at https://github.com/ropensci/rcrossref#citation-search. Here is a quick example:
install.packages("rcrossref")
library("rcrossref")
cat(cr_cn(dois = "10.1126/science.169.3946.635", format = "bibtex"))
#> @article{Frank_1970,
#> doi = {10.1126/science.169.3946.635},
#> url = {http://dx.doi.org/10.1126/science.169.3946.635},
#> year = 1970,
#> month = {aug},
#> publisher = {American Association for the Advancement of Science ({AAAS})},
#> volume = {169},
#> number = {3946},
#> pages = {635--641},
#> author = {H. S. Frank},
#> title = {The Structure of Ordinary Water: New data and interpretations are yielding new insights into this fascinating substance},
#> journal = {Science}
#> }
This library will require only DOI's to work effectively. Additionally, it offers other useful functions for article searches and getting DOIs by publisher.
I hope this information proves helpful!