@misc{an+algorithm+for+reducing+dimension+and+size+of+sample+for+data+exploration+procedures,
    author = {Kulczycki, Piotr i Łukasik, Szymon},
    title = {An algorithm for reducing dimension and size of sample for data exploration procedures},
    journal = {International Journal of Applied Mathematics and Computer Science},
    publisher = {De Gruyter Open},
    date = {2014},
    number = {vol. 24, nr 1}
}