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Dedicated to Professor Roberto Conti on the occasion of his 80th birthday
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Chow, SN., Huang, W. On the number of spikes of solutions for a forced singularly perturbed differential equation. Annali di Matematica 185 (Suppl 5), S129–S169 (2006). https://doi.org/10.1007/s10231-004-0140-6
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DOI: https://doi.org/10.1007/s10231-004-0140-6