@article{Jeffery_2015,
    doi = {10.1016/j.infsof.2014.11.005},
    url = {https://doi.org/10.1016%2Fj.infsof.2014.11.005},
    year = {2015},
    month = {apr},
    publisher = {Elsevier {BV}},
    volume = {60},
    pages = {102--112},
    author = {Ross Jeffery and Mark Staples and June Andronick and Gerwin Klein and Toby Murray},
    title = {An empirical research agenda for understanding formal methods productivity},
    journal = {Information and Software Technology}
}

@article{Jeffery_2015, doi = {10.1016/j.infsof.2014.11.005}, url = {https://doi.org/10.1016%2Fj.infsof.2014.11.005}, year = {2015}, month = {apr}, publisher = {Elsevier {BV}}, volume = {60}, pages = {102--112}, author = {Ross Jeffery and Mark Staples and June Andronick and Gerwin Klein and Toby Murray}, title = {An empirical research agenda for understanding formal methods productivity}, journal = {Information and Software Technology} }