Ivan  Lazar, 
    Approaches to Solving of Permutation Flow Shop Scheduling Problem: An Exploration Study,
    Research Journal of Applied Sciences,
    Volume 7,Issue 9,
    2012,
    Pages 426-434,
    ISSN 1815-932x,
    rjasci.2012.426.434,
    (https://makhillpublications.co/view-article.php?doi=rjasci.2012.426.434)
    Abstract: Permutation flow shop scheduling problems present an important class of sequencing problems in the realm of production planning. The study briefly reviews typical categories of the PFSSPs in accordance with a defined classification scheme of the particular problems. Subsequently, a review of frequent approaches and methods for PFSSP solving is treated. A final section of the study summarizes findings of this review that is mapping the field over field over the last 25 years.
    Keywords: Flow shop;PFSSP;mapping;realm;production