[[1] N. G. de Bruijn, Problem 12, Wisk. Opgaven, 21, (1960), 12-14.]Search in Google Scholar
[[2] M. L. Buzano, Generalizzazione della diseguaglianza di Cauchy-Schwarz. (Italian), Rend. Sem. Mat. Univ. e Politech. Torino, 31, (1974), 405-409.]Search in Google Scholar
[[3] S. S. Dragomir, Some refinements of Schwartz inequality, Simpozionul de Matematici şi Aplicaţii, Timişoara, Romania, 1-2 Noiembrie 1985, 13-16.]Search in Google Scholar
[[4] S. S. Dragomir, Grüss inequality in inner product spaces, The Australian Math Soc. Gazette, 26, (1999), 66-70.]Search in Google Scholar
[[5] S. S. Dragomir, A generalization of Grüss' inequality in inner product spaces and applications, J. Math. Anal. Appl., 237, (1999), 74-82.10.1006/jmaa.1999.6452]Search in Google Scholar
[[6] S. S. Dragomir, Some Grüss type inequalities in inner product spaces, J. Inequal. Pure & Appl. Math., 4, (2003), Article 42. (Online http://jipam.vu.edu.au/article.php?sid=280).]Search in Google Scholar
[[7] S. S. Dragomir, Reverses of Schwarz, triangle and Bessel inequalities in inner product spaces, J. Inequal. Pure & Appl. Math., 5, (2004), Article 76. (Online : http://jipam.vu.edu.au/article.php?sid=432).]Search in Google Scholar
[[8] S. S. Dragomir, New reverses of Schwarz, triangle and Bessel inequalities in inner product spaces, Austral. J. Math. Anal. & Applics., 1, (2004), Article 1. (Online: http://ajmaa.org/cgi-bin/paper.pl?string=nrstbiips.tex).]Search in Google Scholar
[[9] S. S. Dragomir, On Bessel and Grüss inequalities for orthornormal families in inner product spaces, Bull. Austral. Math. Soc., 69, (2004), 327-340.10.1017/S0004972700036066]Search in Google Scholar
[[10] S. S. Dragomir, Advances in Inequalities of the Schwarz, Grüss and Bessel Type in Inner Product Spaces, Nova Science Publishers Inc, New York,x+249 p., 2005.]Search in Google Scholar
[[11] S. S. Dragomir, Reverses of the Schwarz inequality in inner product spaces generalising a Klamkin-McLenaghan result, Bull. Austral. Math. Soc., 73, (2006), 69-78.10.1017/S0004972700038636]Search in Google Scholar
[[12] S. S. Dragomir, Advances in Inequalities of the Schwarz, Triangle and Heisenberg Type in Inner Product Spaces., Nova Science Publishers, Inc., New York,xii+243 pp. ISBN: 978-1-59454-903-8; 1-59454-903-6 (Preprint http://rgmia.org/monographs/advancees2.htm), 2007.]Search in Google Scholar
[[13] S. S. Dragomir, Some new Grüss' type inequalities for functions of selfadjoint operators in Hilbert spaces, Sarajevo J. Math., 6, (2010), 89107.10.1155/2010/496821]Search in Google Scholar
[[14] S. S. Dragomir, Inequalities for the Čebyşev functional of two functions of selfadjoint operators in Hilbert spaces, RGMIA Res. Rep. Coll., 11(e), (2008), Art. 17.]Search in Google Scholar
[[15] S. S. Dragomir, Some inequalities for the Čebyşev functional of two functions of selfadjoint operators in Hilbert spaces, RGMIA Res. Rep. Coll., 11(e), (2008), Art.8.]Search in Google Scholar
[[16] S. S. Dragomir, Inequalities for the Čebyşev functional of two functions of selfadjoint operators in Hilbert spaces, Aust. J. Math. Anal. & Appl., 6, (2009), Article 7, pp. 1-58.]Search in Google Scholar
[[17] S. S. Dragomir, Some inequalities for power series of selfadjoint operators in Hilbert spaces via reverses of the Schwarz inequality, Integral Transforms Spec. Funct., 20, (2009), 757-76710.1080/10652460902910054]Search in Google Scholar
[[18] S. S. Dragomir, Operator Inequalities of the Jensen, Čebyşev and Grüss Type, Springer Briefs in Mathematics. Springer, New York, xii+121 pp. ISBN: 978-1-4614- 1520-6, 2012.10.1007/978-1-4614-1521-3_3]Search in Google Scholar
[[19] S. S. Dragomir, Operator Inequalities of Ostrowski and Trapezoidal Type, Springer Briefs in Mathematics. Springer, New York, x+112 pp. ISBN: 978-1-4614-1778-1, 2012.10.1007/978-1-4614-1779-8_3]Search in Google Scholar
[[20] S. S. Dragomir, Inequalities for the Numerical Radius of Linear Operators in Hilbert Spaces, Springer Briefs in Mathematics. Springer, x+120 pp. ISBN: 978-3-319-01447-0; 978-3-319-01448-7, 2013.]Search in Google Scholar
[[21] S. S. Dragomir, M. V. Boldea, C. Buşe, and M. Megan, Norm inequalities of Čebyşev type for power series in Banach algebras, J. Inequal. Appl., 2014:294, (2014), 19 pp.10.1186/1029-242X-2014-294]Search in Google Scholar
[[22] S. S. Dragomir and B. Mond, On the superadditivity and monotonicity of Schwarz's inequality in inner product spaces, Contributions, Macedonian Acad. of Sci and Arts, 15, (1994), 5-22.]Search in Google Scholar
[[23] S. S. Dragomir and B. Mond, Some inequalities for Fourier coefficients in inner product spaces, Periodica Math. Hungarica, 32, (1995), 167-172.10.1007/BF01882192]Search in Google Scholar
[[24] S. S. Dragomir, J. Pečarič, and J. Şandor, The Chebyshev inequality in pre- Hilbertian spaces. II., Proceedings of the Third Symposium of Mathematics and its Applications (Timişoara, 1989), (1990), 75-78.]Search in Google Scholar
[[25] S. S. Dragomir and J. Şandor, The Chebyshev inequality in pre-Hilbertian spaces. I., Proceedings of the Second Symposium of Mathematics and its Applications (Timişoara, 1987), (1988.), 61-64.]Search in Google Scholar
[[26] K. E. Gustafson and D. K. M. Rao, Numerical Range, Springer-Verlag, New York, Inc., 1997.10.1007/978-1-4613-8498-4]Search in Google Scholar
[[27] S. Kurepa, Note on inequalities associated with Hermitian functionals, Glasnik Matemaţcki, 3, (1968), 196-205.]Search in Google Scholar