@PhdthesisMisc{W64_925,
author = {William Perry Timlake},
title = {On the numerical solution of special second-order initial value problems},
note = {Dis_no 3436, Prof. Dr. Peter Henrici},
school = {ETH Z{\"u}rich},
doi = {http://dx.doi.org/10.3929/ethz-a-000090101},
year = {1964}
}