@misc{misc, title  = {{A Modular First Formalisation of Combinatorial Design Theory}},

 url = {{http://dx.doi.org/10.1007/978-3-030-81097-9_1 }},

 year = {{2021}},

 month = {{5}},

 author = {{Edmonds C and Paulson L}},

 note = {{Accessed on 2024/12/23}}}