The phrase "further corroboration" is correct and commonly used in written English.
It refers to additional evidence or support for a statement or claim that has already been made. Example: The witness's testimony provided further corroboration of the defendant's alibi.
It is useful nevertheless to have further corroboration supplied by Blair himself.
The company "did not challenge these assertions, nor did it seek any further corroboration", the commission said.
F.B.I. investigators from the Washington field office are trying to arrange meetings with two of Mr. Alamoudi's associates to whom he confided details of the plot as further corroboration.
Further corroboration occurred in 1916 when extremely accurate measurements by the American physicist Robert Millikan verified Einstein's equation and showed with high precision that the value of Einstein's constant h was the same as Planck's constant.
Mr. Tsvetanov did not mention Iran, but the Israeli prime minister, Benjamin Netanyahu, said in a statement on Tuesday, "This is yet a further corroboration of what we have already known, that Hezbollah and its Iranian patrons are orchestrating a worldwide campaign of terror that is spanning countries and continents".
However, to establish it, he needs further corroboration.
We provide further corroboration to findings of [10] and support the need for including biomass outside forests in carbon reporting.
The segregated solver has been found to reveal good properties in terms of convergence and stability criteria, which endorsed the further corroboration.
Further corroboration on the effect of spin coating rate can be confirmed by the ability of the PFO-DBT solution to occupy the cavity of the template.
Further corroboration comes from the story of the 16th century Jesuit missionary Matteo Ricci, who attempted to introduce European imagery based mnemonic techniques (see Supplement: Ancient Imagery Mnemonics) into China (Spence, 1985).
Further corroboration was that he had sporadically made other comments as well.
