Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lagrangian Models of the Particles with Spin: The First Seventy Years   We briefly review models of relativistic particles with spin. Departing from
the oldest attempts to describe the spin within the lagrangian framework we
pass through various non supersymmetric models. Then the component and
superfield formulations of the spinning particle and superparticle models are
reviewed. Our focus is mainly on the classical side of the problem, but some
quantization questions are mentioned as well.

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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: physics
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The categories of this paper are: cs
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex