@book{exbook,
  author = {Jane Smith},
  title = {Another example book},
  year = {2019},
}
@article{foo1,
  author = {John Doe},
  title = {An example article},
  year = {2020},
},
@book{bar1,
  author = {Jane Smith},
  title = {An example book},
  year = {2019},
}
@inproceedings{baz1,
  author = {Alice Johnson},
  title = {An example conference paper},
  year = {2020},
}
