https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763050497583&signature=70944cced5539c9de681bd8dba4b37fc&articleTitle=Positive+Polynomials%2C+Convex+Integral+Polytopes%2C+and+a+Random+Walk+Problem&articleAuthor=David+E.+Handelman&publicationTitle=Positive+Polynomials%2C+Convex+Integral+Polytopes%2C+and+a+Random+Walk+Problem&language=&publicationType=1&publishYear=1987&isn=9783540184003&publisher=Springer+Berlin+Heidelberg