Least-Squares Transformations between Point-Sets. - Kalle Rutanen; Germán Gómez-Herrero; Sirkka-Liisa Eriksson; Karen O. Egiazarian (SCIA, 2013)

A general definition of the big-oh notation for algorithm analysis. - Kalle Rutanen; Germán Gómez-Herrero; Sirkka-Liisa Eriksson; Karen O. Egiazarian (CoRR, 2013)

A General Definition of the O-notation for Algorithm Analysis. - Kalle Rutanen; Germán Gómez-Herrero; Sirkka-Liisa Eriksson; Karen O. Egiazarian (Bull. EATCS, 2015)