Spurs were involved in the day's most dramatic game as they took a 3-0 lead to Inter Milan -- only to find themselves level on aggregate after 90 minutes as the rampant Italians scored through the lively Antonio Cassano, Rodrigo Palacio and a William Gallas own goal.

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Clusters are typically concentrated in a defined geographic region and share a high level of inter-connectivity.

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The Task Force has helped women recover millions in lost wages, built collaborative training programs that educate employees about their rights and inform employers of their obligations, and facilitated an unprecedented level of inter-agency coordination to improve enforcement of equal pay laws.

WHITEHOUSE: Presidential Proclamation -- National Equal Pay Day, 2012

The Commission said it would submit proposed regulation by the middle of the year on inter-bank fees aimed at ensuring a level playing field for all card providers.

BBC: EU investigation to probe Mastercard fees

His best-known work on wave mechanics known as "Schrodinger's Equation" goes some way to explaining the inter-connectivity of the universe at a quantum level.

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Effective communication is an essential component of professional success whether it is at the interpersonal, inter-group, intra-group, organizational, or external level.

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Inter drew level on points with Napoli, who were beaten 3-1 at home to Atalanta, for the final Europa League spot.

CNN: Dortmund sink Bayern in Bundesliga top of the table clash