Why does it work

Renardy, M., 1997. Imposing no boundary condition at outflow why does it work Int. J. Numer. Methods Fluids TA, 413-417. 

Kelld, V. and Sadlej, A.J. (2000) The point charge model of nuclear quadrupoles How and why does it work. Journal of Chemical Physics, 112, 522—526. 

A mixed melting point is often used to confirm the identity of an organic substance. How is this done and why does it work ... 

In a discussion of why fibrous glass is used in combination with various polymers, two important questions must be answered. First, what properties of fibrous glass are responsible for its use in combination with plastics Secondly, why does it work ... 

Foote, B. L. and K. G. Murty. 2009. Production systems. In Operations Research Applications, ed. A. R. Ravindran, Chapter 4. Boca Raton, FL CRC Press. Frances, P. H. 2011. Averaging model forecasts and expert forecasts Why does it work. Interfaces. 41(2) 177-181. 

Thomas JD, Rubin DN (1998) Tissue harmonic imaging why does it work J Am Soc Echocardiogr 11 803-808 Thuroff JW, Frohneberg D (1986) Embryologie. In Hohenfellner R, Thuroff JW, Schulte-Wissermann H (eds) Kinderurologie in Klinik und Praxis. Thieme, Stuttgart New York, pp 1-17... 

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