human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Measuring maintainability of spreadsheets in the wild"
  Abstract: Several studies have shown how spreadsheets are pervasive in many organizations as a form of end-user programming. Despite their importance and long lifespan, they are seldom developed with maintenance concerns in mind, and organizations have no efficient way of estimating the risk they present.

Connected through hyperedge HE-1 (induced by source paper "A Quality Model for Spreadsheets"):
  with members:
    - "On the refinement of spreadsheet smells by means of structure information"

Connected through hyperedge HE-2 (induced by source paper "End-user software engineering with assertions in the spreadsheet paradigm"):
  with members:
    - "Forms/3: A first-order visual language to explore the boundaries of the spreadsheet paradigm"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science