https://docs.sciml.ai/DiffEqDocs/stable/types/ode_types/#Example-Problems has several broken links under the "Source" buttons in the lower right of each box, for example the first such button is https://github.com/SciML/DiffEqProblemLibrary.jl/blob/v0.1.7/src/ode_linear_prob.jl#L4-L18 