Karen Basso Paulo Ricardo de Ávila Zingano Carla Maria Dal Sasso Freitas Interpolation of Scattered Data: Investigating Alternatives for the Modified Shepard Method. 39-48 1999 conf/sibgrapi/1999 SIBGRAPI http://computer.org/proceedings/sibgraphi/0481/04810039abs.htm db/conf/sibgrapi/sibgrapi1999.html#BassoZF99