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{\bf EPS-HEP99} \\
{\bf Abstract \# 000} \\
{\bf Parallel sessions: 1,3} \\
{\bf Plenary sessions:  1}
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\abstractheader{ {\bf  
Measurement of Internal Jet Structure in 
Dijet Production in Deep-Inelastic Scattering at HERA  } \\ \\
H1 Collaboration, \\
DESY, Notkestr.85, D-22607 Hamburg, Germany
}

\abstractbody{
Internal jet structure in dijet production in deep-inelastic scattering
is measured with the H1 detector at HERA.
Jets with transverse energies $E_{T, {\rm Breit}} > 5$ \, GeV are
selected in the Breit frame employing $k_\perp$ and cone jet algorithms.
In the kinematic region of squared momentum transfers 
$10 < Q^2 \le 120$\, GeV$^2$ ~and $x$-Bjorken values  
$2 \cdot 10^{-4} \le x_{\rm Bj} \le 8 \cdot 10^{-3}$,
jet shapes and subjet multiplicities are measured as a function of 
a resolution parameter.
Distributions of both observables are corrected for detector effects 
and presented as functions of the transverse jet energy and jet 
pseudo-rapidity.
Dependences of the jet shape and the average number of subjets
on the transverse energy and the pseudo-rapidity of the jet are observed.
With increasing transverse jet energies and decreasing pseudo-rapidities,
i.e.\ towards the photon hemisphere, the jets are more collimated.
QCD models give a fair description of the data.
}

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{\bf References }\\
1. H1 Collaboration, C.~Adloff {\it et al}, 
DESY-98-210 / submitted to Nuc. Phys. B. \\

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