المؤلفون: Ramsey, David S.L., Forsyth, David M., Veltman, Clare J., Nicol, Simon J., Todd, Charles R., Allen, Robert B., Allen, Will J., Bellingham, Peter J., Richardson, Sarah J., Jacobson, Chris L., Barker, Richard J.
العلاقة: http://www.sciencedirect.com/science/article/pii/S0304380012001950Test
الإتاحة: http://www.sciencedirect.com/science/article/pii/S0304380012001950Test
المؤلفون: Lyver, Phil O'B., Timoti, Puke, Gormley, Andrew M., Jones, Christopher J., Richardson, Sarah J., Tahi, Brenda L., Greenhalgh, Suzie
العلاقة: http://www.sciencedirect.com/science/article/pii/S2212041617302711Test
الإتاحة: http://www.sciencedirect.com/science/article/pii/S2212041617302711Test