RT - Journal Article T1 - نقطه، خط، سطح JF - artbr YR - 2016 JO - artbr VO - 2 IS - 5 UR - http://artbr.faslnameh.org/article-1-99-en.html SP - 73 EP - 82 AB - LA eng UL http://artbr.faslnameh.org/article-1-99-en.html M3 ER -