human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "reviewing indicating and counting books for modern research evaluation systems"):
  Abstract: In this chapter, we focus on the specialists who have helped to improve the conditions for book assessments in research evaluation exercises, with empirically based data and insights supporting their greater integration. Our review highlights the research carried out by four types of expert communities, referred to as the monitors, the subject classifiers, the indexers and the indicator constructionists. Many challenges lie ahead for scholars affiliated with these communities, particularly the latter three. By acknowledging their unique, yet interrelated roles, we show where the greatest potential is for both quantitative and qualitative indicator advancements in book-inclusive evaluation systems.

Includes members:
  Member "filling the citation gap measuring the multidimensional impact of the academic book at institutional level with plumx":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the insoluble problems of books what does altmetric com have to offer")
  Member "analyzing the citation characteristics of books edited books book series and publisher types in the book citation index":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "nine million books and eleven million citations a study of book based scholarly communication using opencitations")
  Member "the role of handbooks in knowledge creation and diffusion a case of science and technology studies":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "citations indicators of quality the impact fallacy")
  Member "mapping citation patterns of book chapters in the book citation index":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "science through wikipedia a novel representation of open knowledge through co citation networks")
  Member "comparing journals from different fields of science and social science through a jcr subject categories normalized impact factor":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "publication modalities article in press and open access in relation to journal average citation")
  Member "towards a book publishers citation reports first approach using the book citation index":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "the insoluble problems of books what does altmetric com have to offer")
  Member "measuring contextual citation impact of scientific journals":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "how well does i3 perform for impact measurement compared to other bibliometric indicators the convergent validity of several field normalized indicators")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DL(Digital Libraries)