Shin, Jae-Kwan.2009-03-232009-03-2319721972Source: Masters Abstracts International, Volume: 40-07, page: .http://hdl.handle.net/10393/7403http://dx.doi.org/10.20381/ruor-15313Engineering, General.Unsteady spherically symmetric expansion of a fixed mass of gas into vacuum: a gas front analysis.Thesis