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On approximate Gauss-Newton methods for nonlinear least squares problemKaldo, Indrek; Vaarmann, Otu50th Meeting of the European Working Group "Multiple Criteria Decision Aid" : Brest, France, 20042004 / p. 34

On approximate Gauss-Newton methods for nonlinear least squares problemKaldo, Indrek; Vaarmann, OtuAdvances in multicriteria decision aid2005 / p. 41-47

On approximate methods of tangent hyperbolasKaldo, Indrek; Vaarmann, OtuMathematical modelling and analysis2002 / 2, p. 253-262

On approximate methods of tangent hyperbolasKaldo, Indrek; Vaarmann, Otu7th International Conference : Mathematical Modelling and Analysis, May 31 - June 2, 2002, Kääriku, Estonia : abstracts2002 / p. 25

Rapidly convergent methods for nonlinear Fredholm integral equationsKaldo, Indrek; Vaarmann, OtuMMA 2004 : 9th International Conference "Mathematical Modelling and Analysis" : abstracts2004 / p. 30

Some rapidly convergent methods for nonlinear Fredholm integral equationKaldo, Indrek; Vaarmann, OtuMathematical modelling and analysis : the Baltic journal on mathematical applications, numerical analysis and differential equations2005 / 1, p. 63-72