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Publications (12)

Measuring Cosmological Parameters with the JVAS and CLASS Gravitational Lens Surveys

P. Helbig, R. D. Blandford, I. W. A. Browne +11

Constraining Dark Matter with the Long-Term Variability of Quasars

E. Zackrisson, N. Bergvall, P. Helbig

Gravitational lensing statistics with extragalactic surveys. II. Analysis of the Jodrell Bank-VLA Astrometric Survey

P. Helbig, D. R. Marlow, R. Quast +3

Time delay for the gravitational lens system B0218+357

A. D. Biggs, I. W. A. Browne, P. Helbig +3

The Cosmic Lens All-Sky Survey:II. Gravitational lens candidate selection and follow-up

I. W. A. Browne, P. N. Wilkinson, N. J. F. Jackson +19

A New Quadruple Gravitational Lens System: CLASS B0128+437

P. M. Phillips, M. A. Norbury, L. V. E. Koopmans +15

Gravitational lensing statistics with extragalactic surveys. IV. Joint constraints from gravitational lensing statistics and CMB anisotropies

J. F. Macias-Perez, P. Helbig, R. Quast +2

Constraints on Cosmological Parameters from the Analysis of the Cosmic Lens All Sky Survey Radio-Selected Gravitational Lens Statistics

K. -H. Chae, A. D. Biggs, R. D. Blandford +20

The Cosmic Lens All-Sky Survey parent population - I. Sample selection and number counts

J. P. McKean, I. W. A. Browne, N. J. Jackson +2

Lensing galaxies: light or dark?

N. Jackson, P. Helbig, I. W. A. Browne +4

B0218+357: Time Delays and New MERLIN/VLA 5GHz Maps of the Einstein Ring

A. D. Biggs, I. W. A. Browne, P. N. Wilkinson +3

CLASS B0827+525: `Dark lens' or binary radio-loud quasar?

L. V. E. Koopmans, A. G. de Bruyn, C. D. Fassnacht +12