1. Zero gravity problems in space powerplants: A status survey;Unterberg;ARS (Am. Rocket Soc.) J.,1962
2. On the mechanics of liquids in subgravity;Habip;Astronautica Acta,1965
3. D.A. Petrash R.C. Nussle E.W. Otto Effect of contact angle and tank geometry on the configuration of the liquid-vapor interface during weightlessness NASA Tech. Note TN D-2075 1963 October
4. Installation čEssais en impesanteur de L'O.N.E.R.A. 5th European Space Symp.;Delattre;Munich, Germany, July 1965 ONERA T.P. No.,1965
5. Experimental production of a zero or near-zero gravity environment;Benedikt,1961