@misc{indiciae459b7dba4b10, title = {Analysis of a distributed-parameter population model based on physiological age.}, author = {J VanSickel}, year = {1977}, doi = {10.1016/0022-5193(77)90289-2}, url = {https://pubmed.ncbi.nlm.nih.gov/839821/}, note = {Source identifier: 839821} }