Guides describe apparitions materializing and muffled conversations overheard, without firmly attributing the phenomena to particular family members.
In addition to the aforementioned statistical limitations arising from the reliance upon imputation for 47% of children, which were overcome by supplementing linear analyses with multinomial logistic regression analyses, a clear limitation is the difficulty in firmly attributing change to legislation, due to the absence of a counterfactual.
In X-ray pulsars associated with high-mass X-ray binaries, the pulsations are firmly attributed to the neutron stars.
The pages had been filed away for decades, while suffering from a few rips, water stains and fading, and had not been firmly attributed to particular artists.
A second official, who also spoke on condition of anonymity, described Russia as a leading suspect but cautioned that it would take time for investigators to firmly attribute blame.
It includes 15 paintings by Vermeer -- nearly half of the 35 works firmly attributed to him -- along with paintings, drawings and prints by a host of other artists and a smattering of decorative objects and books.
Other works were firmly attributed to the artist, after Harrap, Lancaster and Anne Lyles, a Constable expert, traced the sequence of the dazzling oil sketches he made on the spot, by following the tracks of his long walks, starting at their front doors and turning down towards the sea or up the hill and on to the downs.
Of course, it is impossible to firmly attribute the attack at this stage – and Thornton-Trump was not able to offer any specific evidence proving this theory.
Well known from jaws, teeth, and crania but, although postcranial remains are known from the same sites, these are not firmly attributed to the species.
Its date was long uncertain but is now firmly attributed to the reign of Djedefre (2528 2520 BC).
Many unidentified late-14th- and early-15th-century northern artists were of the first rank, but have suffered academic neglect because they have not been attached to any historical person; as Nash puts it, "much of what cannot be firmly attributed remains less studied".
