Citation: Km. Andersen et A. Sandqvist, A NECESSARY AND SUFFICIENT CONDITION FOR A LINEAR-DIFFERENTIAL SYSTEMTO BE STRONGLY MONOTONE, Bulletin of the London Mathematical Society, 30, 1998, pp. 585-588
Citation: Km. Andersen et A. Sandqvist, DIFFERENTIAL-EQUATIONS FOR WHICH THE CROSS-RATIO OF 4 SOLUTIONS IS WEAKLY MONOTONE, Journal of mathematical analysis and applications, 201(2), 1996, pp. 588-599
Citation: A. Sandqvist et Km. Andersen, APPLICATIONS OF THE GENERALIZED BELLMAN-KALABA SOLUTION FORMULA ON LIENARDS EQUATION, Journal of mathematical analysis and applications, 186(1), 1994, pp. 66-90
Citation: Km. Andersen et A. Sandqvist, A GENERALIZED BELLMAN-KALABA SOLUTION FORMULA FOR 1ST-ORDER DIFFERENTIAL-EQUATIONS, Journal of mathematical analysis and applications, 185(3), 1994, pp. 545-569
Citation: Km. Andersen et A. Sandqvist, ON THE CROSS-RATIO OF 4 SOLUTIONS OF A 1ST-ORDER ORDINARY DIFFERENTIAL-EQUATION, Journal of differential equations, 108(1), 1994, pp. 89-100